US2739870A - Composition and sheet material for inhibition of corrosion of metals - Google Patents
Composition and sheet material for inhibition of corrosion of metals Download PDFInfo
- Publication number
- US2739870A US2739870A US185141A US18514150A US2739870A US 2739870 A US2739870 A US 2739870A US 185141 A US185141 A US 185141A US 18514150 A US18514150 A US 18514150A US 2739870 A US2739870 A US 2739870A
- Authority
- US
- United States
- Prior art keywords
- nitrite
- corrosion
- benzoic acid
- amide
- salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims description 23
- 229910052751 metal Inorganic materials 0.000 title claims description 14
- 239000002184 metal Substances 0.000 title claims description 14
- 238000005260 corrosion Methods 0.000 title description 23
- 230000007797 corrosion Effects 0.000 title description 23
- 239000000463 material Substances 0.000 title description 11
- 230000005764 inhibitory process Effects 0.000 title description 6
- 150000002739 metals Chemical class 0.000 title description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 36
- 230000002401 inhibitory effect Effects 0.000 claims description 23
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 19
- 239000005711 Benzoic acid Substances 0.000 claims description 17
- 235000010233 benzoic acid Nutrition 0.000 claims description 17
- 150000001408 amides Chemical class 0.000 claims description 16
- 239000004615 ingredient Substances 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 14
- 150000003857 carboxamides Chemical class 0.000 claims description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052788 barium Inorganic materials 0.000 claims description 7
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052791 calcium Inorganic materials 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 239000011777 magnesium Substances 0.000 claims description 7
- 229910052700 potassium Inorganic materials 0.000 claims description 7
- 239000011591 potassium Substances 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 239000012808 vapor phase Substances 0.000 claims description 7
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 12
- 235000013877 carbamide Nutrition 0.000 description 10
- -1 alkali metal nitrites Chemical class 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 8
- 239000004202 carbamide Substances 0.000 description 8
- 235000010288 sodium nitrite Nutrition 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 150000002826 nitrites Chemical class 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 4
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 4
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 4
- 239000005871 repellent Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- KWIPUXXIFQQMKN-UHFFFAOYSA-N 2-azaniumyl-3-(4-cyanophenyl)propanoate Chemical compound OC(=O)C(N)CC1=CC=C(C#N)C=C1 KWIPUXXIFQQMKN-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 229940090948 ammonium benzoate Drugs 0.000 description 3
- CNWSQCLBDWYLAN-UHFFFAOYSA-N butylurea Chemical compound CCCCNC(N)=O CNWSQCLBDWYLAN-UHFFFAOYSA-N 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 150000001470 diamides Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- OISVCGZHLKNMSJ-UHFFFAOYSA-N 2,6-dimethylpyridine Chemical compound CC1=CC=CC(C)=N1 OISVCGZHLKNMSJ-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- AZFNGPAYDKGCRB-XCPIVNJJSA-M [(1s,2s)-2-amino-1,2-diphenylethyl]-(4-methylphenyl)sulfonylazanide;chlororuthenium(1+);1-methyl-4-propan-2-ylbenzene Chemical compound [Ru+]Cl.CC(C)C1=CC=C(C)C=C1.C1=CC(C)=CC=C1S(=O)(=O)[N-][C@@H](C=1C=CC=CC=1)[C@@H](N)C1=CC=CC=C1 AZFNGPAYDKGCRB-XCPIVNJJSA-M 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- CAMXVZOXBADHNJ-UHFFFAOYSA-N ammonium nitrite Chemical compound [NH4+].[O-]N=O CAMXVZOXBADHNJ-UHFFFAOYSA-N 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 235000010289 potassium nitrite Nutrition 0.000 description 2
- 239000004304 potassium nitrite Substances 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 2
- 235000010234 sodium benzoate Nutrition 0.000 description 2
- 239000004299 sodium benzoate Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- PCKKNFLLFBDNPA-UHFFFAOYSA-N 1,1-dibutylurea Chemical compound CCCCN(C(N)=O)CCCC PCKKNFLLFBDNPA-UHFFFAOYSA-N 0.000 description 1
- GXZCXQRUZIXVNQ-UHFFFAOYSA-N 1-butyl-1-ethylurea Chemical group CCCCN(CC)C(N)=O GXZCXQRUZIXVNQ-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- WUGCLPOLOCIDHW-UHFFFAOYSA-N 2-aminoethanol;benzoic acid Chemical compound [NH3+]CCO.[O-]C(=O)C1=CC=CC=C1 WUGCLPOLOCIDHW-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- KHBQMWCZKVMBLN-UHFFFAOYSA-N Benzenesulfonamide Chemical compound NS(=O)(=O)C1=CC=CC=C1 KHBQMWCZKVMBLN-UHFFFAOYSA-N 0.000 description 1
- XBPCUCUWBYBCDP-UHFFFAOYSA-N Dicyclohexylamine Chemical compound C1CCCCC1NC1CCCCC1 XBPCUCUWBYBCDP-UHFFFAOYSA-N 0.000 description 1
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 1
- MGJKQDOBUOMPEZ-UHFFFAOYSA-N N,N'-dimethylurea Chemical compound CNC(=O)NC MGJKQDOBUOMPEZ-UHFFFAOYSA-N 0.000 description 1
- 241000282485 Vulpes vulpes Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- DNSISZSEWVHGLH-UHFFFAOYSA-N butanamide Chemical compound CCCC(N)=O DNSISZSEWVHGLH-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000003946 cyclohexylamines Chemical class 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 1
- HPYNZHMRTTWQTB-UHFFFAOYSA-N dimethylpyridine Natural products CC1=CC=CN=C1C HPYNZHMRTTWQTB-UHFFFAOYSA-N 0.000 description 1
- 229950001902 dimevamide Drugs 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- HSEMFIZWXHQJAE-UHFFFAOYSA-N hexadecanamide Chemical compound CCCCCCCCCCCCCCCC(N)=O HSEMFIZWXHQJAE-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- IDNHOWMYUQKKTI-UHFFFAOYSA-M lithium nitrite Chemical compound [Li+].[O-]N=O IDNHOWMYUQKKTI-UHFFFAOYSA-M 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- OOHAUGDGCWURIT-UHFFFAOYSA-N n,n-dipentylpentan-1-amine Chemical class CCCCCN(CCCCC)CCCCC OOHAUGDGCWURIT-UHFFFAOYSA-N 0.000 description 1
- RIWRFSMVIUAEBX-UHFFFAOYSA-N n-methyl-1-phenylmethanamine Chemical compound CNCC1=CC=CC=C1 RIWRFSMVIUAEBX-UHFFFAOYSA-N 0.000 description 1
- ODHYIQOBTIWVRZ-UHFFFAOYSA-N n-propan-2-ylhydroxylamine Chemical compound CC(C)NO ODHYIQOBTIWVRZ-UHFFFAOYSA-N 0.000 description 1
- ZFIFHAKCBWOSRN-UHFFFAOYSA-N naphthalene-1-sulfonamide Chemical compound C1=CC=C2C(S(=O)(=O)N)=CC=CC2=C1 ZFIFHAKCBWOSRN-UHFFFAOYSA-N 0.000 description 1
- 150000005002 naphthylamines Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- MONRWRVYLOHUFA-UHFFFAOYSA-N pentylurea Chemical group CCCCCNC(N)=O MONRWRVYLOHUFA-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 description 1
- 229940080818 propionamide Drugs 0.000 description 1
- ZQZJKHIIQFPZCS-UHFFFAOYSA-N propylurea Chemical compound CCCNC(N)=O ZQZJKHIIQFPZCS-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229940037312 stearamide Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/923—Physical dimension
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31801—Of wax or waxy material
- Y10T428/31804—Next to cellulosic
- Y10T428/31808—Cellulosic is paper
Definitions
- the alkali metal nitrites including ammonium nitrite, sodium nitrite, potassium nitrite and lithium nitrite.
- the water-soluble nitrites include those which are soluble in organic solvents and those which are mutually soluble with the organic amides in organic or other solvent media.
- amides which can be used in combination with the nitrites are the mono-amides, diamides, and polyamides.
- mono-amide is meant to include organic compounds having the general formula RCONI-Iz, where R is an aliphatic group having from 1-25 or more carbon atoms. These include such amides as acetamide, propionamide, N-butyramide, N-valeramide, stearamide, palmitylamide, fatty acid amides and the like. Although less activity results when R is alicyclic, aromatic or mixed aliphatic aromatic, amides of this type can be used.
- the amide can be benzarnide or aromatic acid amides of the type of benzenesulfonic acid amide, toluenesulfonic acid amide, naphthalenesulfonic acid amide and the like.
- the most suitable amides are the diamides, which can be represented by the general formula RQNCONRQ, where R can be hydrogen or an organic radical of the type previously described for the monoamide formula.
- urea guanidine, biuret, and the like
- N-substituted ureas and unsymmetrical ureas such as N, N-dibutyl urea, N-butyl urea, N-propyl urea, dimethyl urea, tertiary butyl urea, tertiary amyl urea, ethyl butyl urea and the like.
- urea is urea.
- My invention is based upon the discovery that the functioning of the aforesaid compositions, in relation to the inhibition of corrosion of ferrous objects, is substantially improved by the incorporation therein or conjoint use therewith of salts of benzoic acid.
- the action of the salts of benzoic acid appears to synergize the activity of 2,739,370 Patented Mar. 27, 1956 the organic amide-inorganic nitrite compositions so as to bring about a marked enhancement of the corrosion inhibiting properties of the latter compositions.
- inorganic metal including alkali metal, and amine salts as, for example, sodium, potassium, ammonium, lithium, calcium, magnesium, barium, aluminum, iron, tn'methylamin'e, isopropylamine, ethylamine, diethylamine, triethylamine, tripropylamine, tributylamine, cyclohexylatnine, dicyclohexylamine, 2hydroxyethyla mine, bis-(Z-hydroxyethyl)amine, tris-(2-hydroxyethyl)- amine, beta-hydroxyisopropylamine, bis-(beta-hydroxyisopropyl)amine, propylamine, butylamine, N, N-Di- Inethyl-Z-hydroxyethylamine, N, N-Diethyl-Z-hydroxyethylamine, benzylamine, sodium, potassium, ammonium, lithium, calcium, magnesium, barium, aluminum, iron, tn'
- compositions made in accordance with my invention. It will be understood that various changes may be made therein in relation to proportions of the ingreclients and numerous other compositions can readily be evolved in the light of the teachings disclosed herein. Said compositions may be utilized, among other ways, to impregnate carriers or solid bodies of various types to deposit therein the solids comprising the corrosion inhibitingcompositions. All partsgiven are by weight.
- Example 1 Sodium nitrite 3O Urea 30 Sodium benzoate 20 Water 60 7
- Example 2 Sodium nitrite 6 Urea 12 Ammonium benzoate 10 Water 60
- Example 3 Potassium nitrite 10 Acetamide 8 Cyclohexylamine salt of benzoic acid 8 Water 70
- Example 4 Sodium nitrite l0 Guanidine 20 Triethanolamine salt of benzoic acid 15 Water 100
- Example 5 Ammonium nitrite 5 N-butyl urea 3 Ammonium benzoate 2 Water 2O
- Exampled Sodium nitrite 10 Urea a 10 Sodium benzoate 5 Ammonium benzoate 3 Water
- Example 7 Sodium nitrite 11 Urea 11 2-hydroxyethylammonium benzoate 22 Water 1 156
- the three components comprising the corrosion inhibiting compositions which are utilized in accordance with my invention can be
- the corrosion inhibiting composition When the corrosion inhibiting composition is embodied or incorporated into a solid carrier or support member as, for example, a sheet of paper, a corrugated or other carton, a separator, or a wrapper or the like, good results are obtained where the corrosion inhibiting composition is present in a concentration of from about 0.1 to or grams per square foot of surface of the carrier sheet or the like. In the usual case, the corrosion inhibiting composition is very effective when it is present in or on the carrier or support member in the total amount of the order of about 2 to 4 grams per square foot of sheet surface area to which the ferrous article to be protected is exposed.
- the corrosion inhibiting composition may be incorporated into or upon a suitable carrier, which may be sheet stock, finely divided particles of relatively inert material, and the like, in any one of several ways disclosed, for example, in the aforementioned patent.
- a suitable solvent for instance, water, or an organic solvent or a mixture of solvents
- the corrosion inhibiting composition may be utilized in the form of a dispersion or emulsion and deposited into or upon a carrier by dipping, brushing, spraying and other ways known in the art.
- the ingredients comprising the corrosion inhibitingcompositions of the present invention be deposited on or into thecarrier from a single solution or dispersion or the like, it will be appreciated that such procedure need not be followed.
- the inorganic nitrite may initially be deposited in or upon the carrier after which the organic amide may be deposited followed by the deposition of the salt of benzoic acid, or the order of the deposition of the aforesaid ingredients may be altered in any way desired. The important thing is that all three of said ingredients be present so that they can exert their conjoint effects.
- water-repellent materials is readily available for use in this connection as, for example, waxes, such as microcrystalline waxes, asphaltums, soaps of normally solid fatty acids such as sodium stearate, and various other materials of this type.
- waxes such as microcrystalline waxes, asphaltums, soaps of normally solid fatty acids such as sodium stearate, and various other materials of this type.
- a vapor phase inhibiting composition for inhibiting corrosive attack on metal by elements normally existing in the atmosphere comprising, as essential ingredients, an organic amide, an inorganic metal nitrite, and a salt of benzoic acid selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, said ingredients being present in the ratio of about 1 part by weight of said nitrite to 0.05-2O parts by weight each of said amide and said salt of benzoic acid.
- a vapor phase inhibiting composition for inhibiting corrosive attack on metal by elements normally existing in the atmosphere comprising, as essential ingredients, an amide selected from the group consisting of mono-, diand polyamides, a water-soluble metal nitrite, and a salt of benzoic acid selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, said ingredients being present in the ratio of about one part by weight of said nitrite to 0.05- parts by weight each of said amide and said benzoic acid salt.
- a vapor phase inhibiting composition for use in the inhibition of corrosive attack on metal by elements normally existing in the atmosphere comprising, as essential ingredients, an aqueous solution of an amide having less than carbon atoms in chain-like arrangement, an inorganic nitrite, and a salt of benzoic acid selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, said ingredients being present in the ratio of 1 part of said nitrite to 0.05-20 parts each of said amide and said benzoic acid salt.
- An article of manufacture for inhibiting the corrosion of metal by means of vapor phase inhibition comprising a solid carrier embodying therein an organic amide, an inorganic nitrite, and a salt of benzoic acid selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, said ingredients being present in the ratio of 1 part of said nitrite to 0.03 40 parts each of said amide and said benzoic acid salt.
- An article of manufacture for inhibiting the corrosion of metal by means of vapor phase inhibition comprising sheet stock impregnated with a water-soluble amide, a water-soluble inorganic nitrite, and a salt of benzoic acid, selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, the amide and the nitrite being present in the sheet stock in approximately equal parts by weight, and the said benzoic acid salt being present in the sheet stock in slightly greater proportions than the amide, the aforesaid ingredients being present in said sheet stock in a total amount of about 2 to about 4 grams per square foot of sheet surface area, one surface of said sheet stock carrying a backing comprising a layer of moisture-repellent material.
- An article of manufacture for inhibiting the corrosion of metal by means of vapor phase inhibition comprising paper sheet stock impregnated with urea, an alkali metal nitrite, and the sodium salt of benzoic acid, .the
Description
(IOMPOSITION AND SHEET MATERIAL FOR INHElTION F CORROSION 0F METALS Murray Senkus, Western Springs, 111., assiguor to Daubert Chemical Company, a corporation of Illinois No Drawing. Application September 15, 1950, Serial No. 185,141
9 Claims. (Cl. 212.5)
- subject to attack by the elements normally existing in i the atmosphere.
In the U. S. patent of Edward A. Schwoegler and Clemens A. Hutter, No. 2,521,311, dated September 5, 1950, eliective metal corrosion inhibiting compositions are disclosed containing organic amides and inorganic metal nitrites. As is disclosed in said patent, a synergistic effect is secured by virtue of the conjoint use of the aforesaid two types of materials.
Among the inorganic nitrites which can be utilized pursuant to the teachings of the aforesaid patent are the alkali metal nitrites, including ammonium nitrite, sodium nitrite, potassium nitrite and lithium nitrite. 0f particular utility are the water-soluble nitrites. Other nitrites can be utilized including those which are soluble in organic solvents and those which are mutually soluble with the organic amides in organic or other solvent media.
As described in the aforementioned patent, among the amides which can be used in combination with the nitrites are the mono-amides, diamides, and polyamides. The term mono-amide is meant to include organic compounds having the general formula RCONI-Iz, where R is an aliphatic group having from 1-25 or more carbon atoms. These include such amides as acetamide, propionamide, N-butyramide, N-valeramide, stearamide, palmitylamide, fatty acid amides and the like. Although less activity results when R is alicyclic, aromatic or mixed aliphatic aromatic, amides of this type can be used. For example, the amide can be benzarnide or aromatic acid amides of the type of benzenesulfonic acid amide, toluenesulfonic acid amide, naphthalenesulfonic acid amide and the like. The most suitable amides are the diamides, which can be represented by the general formula RQNCONRQ, where R can be hydrogen or an organic radical of the type previously described for the monoamide formula. Illustrative of suitable diamides are urea, guanidine, biuret, and the like, or N-substituted ureas and unsymmetrical ureas such as N, N-dibutyl urea, N-butyl urea, N-propyl urea, dimethyl urea, tertiary butyl urea, tertiary amyl urea, ethyl butyl urea and the like. Of particular utility is urea.
As is further described in the foregoing patent, good results are obtained when the aforesaid compounds are utilized in the ratio of one part of the inorganic nitrite to from about 0.05-20 parts of the amides, said parts being by weight, and particularly advantageous results are obtained by the employment of substantially equal parts by weight of the inorganic nitrite and the organic amide.
My invention is based upon the discovery that the functioning of the aforesaid compositions, in relation to the inhibition of corrosion of ferrous objects, is substantially improved by the incorporation therein or conjoint use therewith of salts of benzoic acid. The action of the salts of benzoic acid appears to synergize the activity of 2,739,370 Patented Mar. 27, 1956 the organic amide-inorganic nitrite compositions so as to bring about a marked enhancement of the corrosion inhibiting properties of the latter compositions.
Among the various salts of benzoic acid which can be utilized in the practice of my invention are, by way of illustration, inorganic metal, including alkali metal, and amine salts as, for example, sodium, potassium, ammonium, lithium, calcium, magnesium, barium, aluminum, iron, tn'methylamin'e, isopropylamine, ethylamine, diethylamine, triethylamine, tripropylamine, tributylamine, cyclohexylatnine, dicyclohexylamine, 2hydroxyethyla mine, bis-(Z-hydroxyethyl)amine, tris-(2-hydroxyethyl)- amine, beta-hydroxyisopropylamine, bis-(beta-hydroxyisopropyl)amine, propylamine, butylamine, N, N-Di- Inethyl-Z-hydroxyethylamine, N, N-Diethyl-Z-hydroxyethylamine, benzylamine, naphthylamines, triamylamines, dimethylbenzylamine, (dimethyl) (cyclohexyl) amine, methylbenzylamine, piperidine, pyridine, lutidine, morpholine, diphenylamine, Z-phenylethylamine, a-methyl-B hydroxyisopropylamine, and the like.
The following examplesare illustrative of corrosion inhibiting compositions made in accordance with my invention. It will be understood that various changes may be made therein in relation to proportions of the ingreclients and numerous other compositions can readily be evolved in the light of the teachings disclosed herein. Said compositions may be utilized, among other ways, to impregnate carriers or solid bodies of various types to deposit therein the solids comprising the corrosion inhibitingcompositions. All partsgiven are by weight.
Example 1 Sodium nitrite 3O Urea 30 Sodium benzoate 20 Water 60 7 Example 2 Sodium nitrite 6 Urea 12 Ammonium benzoate 10 Water 60 Example 3 Potassium nitrite 10 Acetamide 8 Cyclohexylamine salt of benzoic acid 8 Water 70 Example 4 Sodium nitrite l0 Guanidine 20 Triethanolamine salt of benzoic acid 15 Water 100 Example 5 Ammonium nitrite 5 N-butyl urea 3 Ammonium benzoate 2 Water 2O Exampled Sodium nitrite 10 Urea a 10 Sodium benzoate 5 Ammonium benzoate 3 Water Example 7 Sodium nitrite 11 Urea 11 2-hydroxyethylammonium benzoate 22 Water 1 156 Example 8 iodium nitrite 3 Urea 8 Z-hydroxyethylammonium benzoate 11 Water 78 The three components comprising the corrosion inhibiting compositions which are utilized in accordance with my invention can be employed in varying proportions. Good results are obtained, for example, where, for each part of inorganic nitrite, from 0.05 to 20 parts each of the organic amide and the salt of benzoic acid are employed, said parts being by weight. Especially advantageous results are obtained Where the ingredients are employed in proportions amounting to substantially equal parts of inorganic nitrite and organic amide with a slightly greater proportion of the salt of benzoic acid.
When the corrosion inhibiting composition is embodied or incorporated into a solid carrier or support member as, for example, a sheet of paper, a corrugated or other carton, a separator, or a wrapper or the like, good results are obtained where the corrosion inhibiting composition is present in a concentration of from about 0.1 to or grams per square foot of surface of the carrier sheet or the like. In the usual case, the corrosion inhibiting composition is very effective when it is present in or on the carrier or support member in the total amount of the order of about 2 to 4 grams per square foot of sheet surface area to which the ferrous article to be protected is exposed.
The corrosion inhibiting composition may be incorporated into or upon a suitable carrier, which may be sheet stock, finely divided particles of relatively inert material, and the like, in any one of several ways disclosed, for example, in the aforementioned patent. Thus, all of the ingredients may be dissolved in a suitable solvent, for instance, water, or an organic solvent or a mixture of solvents, and the carrier impregnated with the solution after which the solvent material may be evaporated. Alternatively, the corrosion inhibiting composition may be utilized in the form of a dispersion or emulsion and deposited into or upon a carrier by dipping, brushing, spraying and other ways known in the art. While, in commercial practice, it is desirable that all of the ingredients comprising the corrosion inhibitingcompositions of the present invention be deposited on or into thecarrier from a single solution or dispersion or the like, it will be appreciated that such procedure need not be followed. Thus, for example, the inorganic nitrite may initially be deposited in or upon the carrier after which the organic amide may be deposited followed by the deposition of the salt of benzoic acid, or the order of the deposition of the aforesaid ingredients may be altered in any way desired. The important thing is that all three of said ingredients be present so that they can exert their conjoint effects.
As described in the aforesaid patent, it is frequently desirable to coat one side of a sheet of paper or other absorbent cellulosic or fabric material or the like, which has been impregnated with a corrosion inhibiting composition, with a water-repellent or moisture-proof mate-- rial for the purposes of preventing too rapid dissipation of the corrosion inhibiting composition and to insure against undue moisture absorption by said carriers where one or more of the ingredients of the corrosion inhibiting composition utilized is of a hygroscopic character. A number of water-repellent materials is readily available for use in this connection as, for example, waxes, such as microcrystalline waxes, asphaltums, soaps of normally solid fatty acids such as sodium stearate, and various other materials of this type. For a more detailed description thereof, and for a detailed description of various carriers and manners of utilizing in practical commercial ways corrosion inhibiting compositions of the type here involved, reference may be had to the aforementioned patent and application as well as to the application .of
4 Clemens A. Hutter, Serial No. 124,852, filed November 1, 1949, now Patent No. 2,534,201, dated November 12, 1950. The teachings and practices disclosed in said patent and applications can be and advantageously are utilized in the practice of my present invention.
What I claim as new and desire to protect by Letters Patent of the United States is:
1. A vapor phase inhibiting composition for inhibiting corrosive attack on metal by elements normally existing in the atmosphere comprising, as essential ingredients, an organic amide, an inorganic metal nitrite, and a salt of benzoic acid selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, said ingredients being present in the ratio of about 1 part by weight of said nitrite to 0.05-2O parts by weight each of said amide and said salt of benzoic acid.
2. A vapor phase inhibiting composition for inhibiting corrosive attack on metal by elements normally existing in the atmosphere comprising, as essential ingredients, an amide selected from the group consisting of mono-, diand polyamides, a water-soluble metal nitrite, and a salt of benzoic acid selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, said ingredients being present in the ratio of about one part by weight of said nitrite to 0.05- parts by weight each of said amide and said benzoic acid salt.
3. A vapor phase inhibiting composition for use in the inhibition of corrosive attack on metal by elements normally existing in the atmosphere comprising, as essential ingredients, an aqueous solution of an amide having less than carbon atoms in chain-like arrangement, an inorganic nitrite, and a salt of benzoic acid selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, said ingredients being present in the ratio of 1 part of said nitrite to 0.05-20 parts each of said amide and said benzoic acid salt.
4. An article of manufacture for inhibiting the corrosion of metal by means of vapor phase inhibition comprising a solid carrier embodying therein an organic amide, an inorganic nitrite, and a salt of benzoic acid selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, said ingredients being present in the ratio of 1 part of said nitrite to 0.03 40 parts each of said amide and said benzoic acid salt.
5. An article of manufacture in accordance with claim 4, in which the carrier is an absorbent cellulosic sheet, and the ingredientswhich are embodied therein are present in a total amount of from about 2 to about 4 grams per square foot of sheet surface area.
6. An article of manufacture in accordance with claim 5, in which one surface of the cellulosic sheet is backed by a layer of moisture-repellent material.
7. An article of manufacture for inhibiting the corrosion of metal by means of vapor phase inhibition comprising sheet stock impregnated with a water-soluble amide, a water-soluble inorganic nitrite, and a salt of benzoic acid, selected from the group consisting of sodium, potassium, lithium, calcium, magnesium, barium, aluminum and iron, the amide and the nitrite being present in the sheet stock in approximately equal parts by weight, and the said benzoic acid salt being present in the sheet stock in slightly greater proportions than the amide, the aforesaid ingredients being present in said sheet stock in a total amount of about 2 to about 4 grams per square foot of sheet surface area, one surface of said sheet stock carrying a backing comprising a layer of moisture-repellent material.
8. An article of manufacture for inhibiting the corrosion of metal by means of vapor phase inhibition comprising paper sheet stock impregnated with urea, an alkali metal nitrite, and the sodium salt of benzoic acid, .the
areasvo References Cited in the file of this patent UNITED STATES PATENTS 2,334,158 Fuchs et a1 Nov. 9, 1943 2,504,200 Johansson Apr. 18, 1950 15 2,521,311 Schwoegler et al Sept. 5, 1950 2,629,649 Wachter Feb. 24, 1953 6 FOREIGN PATENTS 600,328 Great Britain Apr. 6, 1948 596,160 Great Britain Dec. 30, 1947 588,864 Great Britain June 7, 1947 OTHER REFERENCES Corrosion Causes and Prevention, by Frank N. Speller, McGraw-Hill Book Co., Inc., N. Y. and London,
0 1951, at page 214.
Vernon, W. H. J.: J. Soc. Chem. Ind., vol. 66, p. 139, May 1947.
Amines Check Corrosion, in Power, March 1951, at p. 71.
Baker et al.: Polar Type Rust Inhibitors, Industrial and Eng. Chem, vol. 40, December 1948, pp. 2338-2347.
Claims (1)
1. A VAPOR PHASE INHIBITING COMPOSITION FOR INHIBITING CORROSIVE ATTACK ON METAL BY ELEMENTS NORMALLY EXISTING IN THE ATMOSPHERE COMPRISING AS ESSENTIAL INGREDIENTS, AN ORGANIC AMIDE, AN INORGANIC METAL NITRITE, AND A SALT OF BENZOIC ACID SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, LITHIUM, CALCIUM, MAGNESIUM, BARIUM, ALUMINUM AND IRON, SAID INGREDIENTS BEING PRESENT IN THE RATIO OF ABOUT 1 PART BY WEIGHT OF SAID NITRITE TO 0.05-20 PARTS BY WEIGHT EACH OF SAID AMIDE AND SAID SALT OF BENZOIC ACID.
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US185141A US2739870A (en) | 1950-09-15 | 1950-09-15 | Composition and sheet material for inhibition of corrosion of metals |
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US2941944A (en) * | 1955-03-29 | 1960-06-21 | Exxon Research Engineering Co | Soluble oil composition |
DE1084544B (en) * | 1957-12-09 | 1960-06-30 | Michel Louis Julien Bernard | Means for preventing the corrosion of metals by oxidizing substances containing chlorine and its application |
US3110684A (en) * | 1959-12-22 | 1963-11-12 | Leo D Miller | Humidifier preservative |
US3257162A (en) * | 1961-12-12 | 1966-06-21 | Omega Chemicals Corp | Inhibition of volatilization of aqueous organic mixtures |
US3296020A (en) * | 1964-08-27 | 1967-01-03 | Bibb Mfg Co | Process for producing antistatic characteristic in nylon fibers |
US3425954A (en) * | 1966-01-24 | 1969-02-04 | Cromwell Paper Co | Four component multipurpose corrosion inhibitor |
US3816185A (en) * | 1970-03-18 | 1974-06-11 | Raytheon Co | Protective coating on wire |
US3922389A (en) * | 1972-01-07 | 1975-11-25 | Raytheon Co | Method for protectively coating magnetic wire |
EP0223773A1 (en) * | 1984-04-06 | 1987-06-03 | Quality Packaging Supply Corporation | Ferrous metal corrosion inhibiting sheet material |
US4923566A (en) * | 1988-07-19 | 1990-05-08 | Nalco Chemical Company | Method of pacifying stickies in paper |
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US2504200A (en) * | 1945-05-12 | 1950-04-18 | Johansson Sven Christian | Corrosion inhibiting compositions |
US2521311A (en) * | 1949-03-01 | 1950-09-05 | Nox Rust Chemical Corp | Corrosion inhibiting compositions |
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US2941944A (en) * | 1955-03-29 | 1960-06-21 | Exxon Research Engineering Co | Soluble oil composition |
DE1084544B (en) * | 1957-12-09 | 1960-06-30 | Michel Louis Julien Bernard | Means for preventing the corrosion of metals by oxidizing substances containing chlorine and its application |
US3110684A (en) * | 1959-12-22 | 1963-11-12 | Leo D Miller | Humidifier preservative |
US3257162A (en) * | 1961-12-12 | 1966-06-21 | Omega Chemicals Corp | Inhibition of volatilization of aqueous organic mixtures |
US3296020A (en) * | 1964-08-27 | 1967-01-03 | Bibb Mfg Co | Process for producing antistatic characteristic in nylon fibers |
US3425954A (en) * | 1966-01-24 | 1969-02-04 | Cromwell Paper Co | Four component multipurpose corrosion inhibitor |
US3816185A (en) * | 1970-03-18 | 1974-06-11 | Raytheon Co | Protective coating on wire |
US3922389A (en) * | 1972-01-07 | 1975-11-25 | Raytheon Co | Method for protectively coating magnetic wire |
EP0223773A1 (en) * | 1984-04-06 | 1987-06-03 | Quality Packaging Supply Corporation | Ferrous metal corrosion inhibiting sheet material |
EP0223773A4 (en) * | 1984-04-06 | 1987-09-16 | David M Weil | Ferrous metal corrosion inhibiting sheet material. |
US4923566A (en) * | 1988-07-19 | 1990-05-08 | Nalco Chemical Company | Method of pacifying stickies in paper |
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