US2691637A - Bleaching and disinfecting agents - Google Patents
Bleaching and disinfecting agents Download PDFInfo
- Publication number
- US2691637A US2691637A US200493A US20049350A US2691637A US 2691637 A US2691637 A US 2691637A US 200493 A US200493 A US 200493A US 20049350 A US20049350 A US 20049350A US 2691637 A US2691637 A US 2691637A
- Authority
- US
- United States
- Prior art keywords
- acid
- bleaching
- per liter
- acids
- corrosion
- 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
- 238000004061 bleaching Methods 0.000 title description 17
- 239000007844 bleaching agent Substances 0.000 title description 3
- 239000000645 desinfectant Substances 0.000 title description 3
- 238000005260 corrosion Methods 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 229910001919 chlorite Inorganic materials 0.000 claims description 9
- 229910052619 chlorite group Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 229910001963 alkali metal nitrate Inorganic materials 0.000 claims description 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-M chlorite Chemical compound [O-]Cl=O QBWCMBCROVPCKQ-UHFFFAOYSA-M 0.000 claims 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 21
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 20
- 239000002253 acid Substances 0.000 description 13
- 238000007792 addition Methods 0.000 description 13
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 13
- 229960002218 sodium chlorite Drugs 0.000 description 13
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 12
- 239000004155 Chlorine dioxide Substances 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 235000019398 chlorine dioxide Nutrition 0.000 description 10
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical class OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 7
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 7
- 150000007513 acids Chemical class 0.000 description 6
- 235000013351 cheese Nutrition 0.000 description 6
- 235000010344 sodium nitrate Nutrition 0.000 description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 5
- 229910017604 nitric acid Inorganic materials 0.000 description 5
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 4
- 150000002823 nitrates Chemical class 0.000 description 4
- 239000004317 sodium nitrate Substances 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- -1 fatty acid salts Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 150000003460 sulfonic acids Chemical class 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 235000011180 diphosphates Nutrition 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 240000002129 Malva sylvestris Species 0.000 description 1
- 235000006770 Malva sylvestris Nutrition 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012042 active reagent Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M bisulphate group Chemical group S([O-])(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001733 carboxylic acid esters Chemical group 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229940077239 chlorous acid Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000001177 diphosphate Substances 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229940048084 pyrophosphate Drugs 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 238000009899 sodium chlorite bleaching Methods 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical class NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 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
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
-
- 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
- C23F11/04—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
- D06L4/24—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide
- D06L4/26—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide combined with specific additives
Definitions
- the present invention relates to improved bleaching and disinfecting agents.
- a method is employed using as an active reagent a Water-soluble chlorite or chlorine dioxide, in an aqueous solution containing in addition an acid derived from a nitrogen oxide'a'nd/or a salt of such an acid.
- a Water-soluble chlorite or chlorine dioxide is particularly useful.
- nitric acid or nitrates especially sodium nitrate; furthermore, nitrous acid or its salts may be used since they are oxidized with formation of nitric acid 'or nitrate and thereby become effective.
- the acids and salts to be'use'd according to this invention may be added to the bleaching baths in addition to the usual auxiliary agents "necessary for adjusting the pH-val-ue such as hydrochloric acid, acetic acid, phosphoric acid, bisulfates, primary ortho-phosphates or the like, either before or after the adjustment of the pH. It is also possible, however, to make use of the acids of the nitrogen oxides and the salts thereof for standardizing the pH necessary for the desired rate of bleaching. 1
- the quantities, for instance, of nitrates to be added to the chlorite baths as a means for ,preventing corrosion, may vary within wide limits. Particularly in the case of low 'concentrations'of ClOz-ions or chlorine dioxide care must be taken, however, that the quantity of the nitrates added is not too small. It has been found that the quantities of the acids of nitrogen oxides required depend in each case on the percentage of ClOz-ions or chlorine dioxide present in the bleaching solution, especially in the case of low concentrations.
- an enhanced protection against corrosion is obtained by adding to the bleaching bath, besides the acid derived from a nitrogen oxide and/or a salt thereof, a sulfonic acid and/or carboxylic acid or a salt of either which acid or salt contains an aliphatic radical of high molecular weight which is interrupted by a carbcxylic-amide 3 or carboxylic ester group.
- the aliphatic radical should contain at least 6 carbon atoms.
- sulfonic acids or carboxylic acids of high molecular weight there enter into consideration, for instance, the reaction products of fatty acids with aminosulfonic acids or aminocarboxylic acids or with degraded proteins, furthermore condensation products from fatty acid salts and halogen carboxylic acids or halogen sulfonic acids.
- Such compounds are widely known as surface-active substances.
- the pH of the bleaching baths may be adjusted by means of the usual inorganic and/or organic acids or salts thereof.
- the bleaching baths may also contain bufier substances such as sodium acetate, mono-phosphate, diphosphate or pyrophosphate, or the like.
- Fibrous material treated as described above is distinguished by a very good absorbing capacity.
- EXAMPLE 1 This example shows how corrosion may be prevented by the addition of nitric acid or a nitrate to a sodium chlorite bath.
- EXAMPLE 2 This example shows how corrosion may be prevented and how sodium chlorite bleaching baths may be stabilized by the addition of a nitrate and a surface-active carboxylic acid or sulfonic acid.
- Sheets of an iron alloy containing 0.1% C+18% Cr+10% Ni With additions of Mo and Ti were placed at 60-65 C. for 240 hours in baths containing 1 gram of sodium chlorite per liter and having a pH 3, the baths being renewed 10 times within the specified period.
- a method of inhibiting the corrosion of stainless steel in contact with an acidic aqueous solution of a water-soluble chlorite comprising: adding to said solution an alkali metal nitrate in an amount ranging from about .6 mole to about 1.0 mole for each mole of the water-soluble chlorite.
- a method according to claim 1, comprising the further addition of a member selected from the group consisting of sulfonic acids and carboxylic acids containing an aliphatic radical of high molecular weight which is interrupted by a carboxylic amide group and of the sulfonic acids and carboxylic acids containing an ali-- phatic radical of high molecular weight which is interrupted by a carboxyiic ester group and of the salts thereof.
- a method of inhibiting the corrosion of stainless steel in contact with an acidic aqueous solution of a water-soluble chlorite comprising: adding to said solution sodium nitrate in an amount ranging from about .6 mole to about 1.0 mole for each mole of water-soluble chlorite and further adding the sodium salt of a sulfonic acid containing an aliphatic radical of high molecular weight which is interrupted by a carboxylic amide group.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Textile Engineering (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE291790X | 1949-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2691637A true US2691637A (en) | 1954-10-12 |
Family
ID=6069866
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US200493A Expired - Lifetime US2691637A (en) | 1949-12-27 | 1950-12-12 | Bleaching and disinfecting agents |
| US415175A Expired - Lifetime US2711363A (en) | 1949-12-27 | 1954-03-09 | Bleaching and disinfecting agents |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US415175A Expired - Lifetime US2711363A (en) | 1949-12-27 | 1954-03-09 | Bleaching and disinfecting agents |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US2691637A (en)) |
| BE (1) | BE500190A (en)) |
| CH (2) | CH291790A (en)) |
| FR (1) | FR1030121A (en)) |
| GB (1) | GB696967A (en)) |
| NL (1) | NL74491C (en)) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739032A (en) * | 1953-03-30 | 1956-03-20 | William K Wilson | Iron-catalyzed decomposition of sodium chlorite |
| US2898179A (en) * | 1955-06-01 | 1959-08-04 | Du Pont | Bleaching |
| US2922695A (en) * | 1953-11-17 | 1960-01-26 | Dungler Julien | Process for the treatments performed with gasiform corrosive fluids chiefly adapted for textile, paper and the like industries |
| US2947700A (en) * | 1953-12-15 | 1960-08-02 | Hoechst Ag | Inhibited chlorite baths and method |
| US3033796A (en) * | 1957-01-23 | 1962-05-08 | Swift & Co | Acid pickling bath containing inhibitor and method of treating ferrous metals |
| US3140146A (en) * | 1961-02-07 | 1964-07-07 | Olin Mathieson | Continuous process for chlorite bleaching of cellulosic textiles |
| US4236891A (en) * | 1979-02-05 | 1980-12-02 | Olin Corporation | Process for textile bleaching with dibasic magnesium hypochlorite |
| US4504442A (en) * | 1982-10-19 | 1985-03-12 | Scopas Technology Corporation | Use of chlorine dioxide gas as a chemosterilizing agent |
| US4681739A (en) * | 1982-10-19 | 1987-07-21 | The Scopas Technology Co., Inc. | Use of chlorine dioxide gas as a chemosterilizing agent |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE942506C (de) * | 1953-06-08 | 1956-05-03 | Hoechst Ag | Verfahren zur Verhuetung von Korrosionen |
| DE1102696B (de) * | 1955-11-26 | 1961-03-23 | Boehme Chem Fab Kg | Verfahren zum Bleichen von cellulosehaltigem Fasergut mit natriumchlorithaltigen Flotten |
| NL112558C (en)) * | 1957-07-20 | |||
| BE571470A (en)) * | 1957-09-24 | |||
| BE578918A (en)) * | 1958-06-11 | |||
| IT981594B (it) * | 1972-05-04 | 1974-10-10 | Solvay | Granuli di clorito di sodio di accresciuta stabilita |
| FR2216220B1 (en)) * | 1973-02-05 | 1975-10-31 | Ugine Kuhlmann | |
| US4886657A (en) * | 1984-07-30 | 1989-12-12 | Ratcliff Perry A | Method for preventing periodontitis |
| US4975285A (en) * | 1984-07-30 | 1990-12-04 | Ratcliff Perry A | Method for cleaning dental prosthetic devices |
| US4889714A (en) * | 1984-07-30 | 1989-12-26 | Ratcliff Perry A | Method for retarding dental plaque by killing streptococcus sanguis |
| US4855135A (en) * | 1984-07-30 | 1989-08-08 | Ratcliff Perry A | Method for debriding |
| US4696811A (en) * | 1984-07-30 | 1987-09-29 | Ratcliff Perry A | Method and composition for prevention and treatment of oral disease |
| US4818519A (en) * | 1986-12-29 | 1989-04-04 | Ratcliff Perry A | Method and composition for prevention of plaque formation and plaque dependent diseases |
| US4978535A (en) * | 1984-07-30 | 1990-12-18 | Ratcliff Perry A | Method for cleaning contact lenses |
| US4689215A (en) * | 1984-07-30 | 1987-08-25 | Ratcliff Perry A | Method and composition for prevention and treatment of oral disease |
| US4793989A (en) * | 1984-07-30 | 1988-12-27 | Ratcliff Perry A | Method and composition for prevention and treatment of oral disease |
| US4837009A (en) * | 1986-03-31 | 1989-06-06 | Ratcliff Perry A | Method and composition for prevention of plaque formation and plaque dependent diseases |
| US4925656A (en) * | 1986-03-31 | 1990-05-15 | Ratcliff Perry A | Method for retarding formation of dental plaque |
| US4786492A (en) * | 1986-03-31 | 1988-11-22 | Ratcliff Perry A | Method and composition for prevention and treatment of oral disease |
| US4851213A (en) * | 1986-03-31 | 1989-07-25 | Ratcliff Perry A | Method and composition for prevention and treatment of oral disease due to S. Sanguis |
| US4792442A (en) * | 1986-03-31 | 1988-12-20 | Ratcliff Perry A | Method and composition for prevention and treatment of oral disease |
| US4808389A (en) * | 1986-12-29 | 1989-02-28 | Ratcliff Perry A | Method and composition for prevention and treatment of oral disease |
| US4963287A (en) * | 1987-05-26 | 1990-10-16 | The Drackett Company | Aqueous alkali metal halogenite compositions |
| US4880556A (en) * | 1987-05-26 | 1989-11-14 | The Drackett Company | Aqueous alkali metal halogenite compositions containing a colorant |
| US5984993A (en) * | 1998-03-20 | 1999-11-16 | Vulcan Materials Company | Method and composition for odor control |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2071091A (en) * | 1936-07-13 | 1937-02-16 | Mathieson Alkali Works Inc | Chemical manufacture |
| US2260367A (en) * | 1939-06-23 | 1941-10-28 | Mathieson Alkali Works Inc | Treatment of substantially solid resinous linear condensation polymers |
| GB552711A (en) * | 1940-09-18 | 1943-04-21 | Mathieson Alkali Works | Improvements in bleaching and finishing textiles |
| US2477631A (en) * | 1945-02-21 | 1949-08-02 | Ecusta Paper Corp | Catalytic bleaching with chlorites |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2482891A (en) * | 1945-03-16 | 1949-09-27 | Olin Mathieson | Solid, stable chlorine dioxide generating compositions |
| FR959544A (en)) * | 1947-02-01 | 1950-03-31 |
-
0
- BE BE500190D patent/BE500190A/xx unknown
- NL NL74491D patent/NL74491C/xx active
-
1950
- 1950-12-12 US US200493A patent/US2691637A/en not_active Expired - Lifetime
- 1950-12-14 CH CH291790D patent/CH291790A/de unknown
- 1950-12-14 CH CH293680D patent/CH293680A/de unknown
- 1950-12-22 GB GB31293/50A patent/GB696967A/en not_active Expired
- 1950-12-26 FR FR1030121D patent/FR1030121A/fr not_active Expired
-
1954
- 1954-03-09 US US415175A patent/US2711363A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2071091A (en) * | 1936-07-13 | 1937-02-16 | Mathieson Alkali Works Inc | Chemical manufacture |
| US2260367A (en) * | 1939-06-23 | 1941-10-28 | Mathieson Alkali Works Inc | Treatment of substantially solid resinous linear condensation polymers |
| GB552711A (en) * | 1940-09-18 | 1943-04-21 | Mathieson Alkali Works | Improvements in bleaching and finishing textiles |
| US2477631A (en) * | 1945-02-21 | 1949-08-02 | Ecusta Paper Corp | Catalytic bleaching with chlorites |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739032A (en) * | 1953-03-30 | 1956-03-20 | William K Wilson | Iron-catalyzed decomposition of sodium chlorite |
| US2922695A (en) * | 1953-11-17 | 1960-01-26 | Dungler Julien | Process for the treatments performed with gasiform corrosive fluids chiefly adapted for textile, paper and the like industries |
| US2947700A (en) * | 1953-12-15 | 1960-08-02 | Hoechst Ag | Inhibited chlorite baths and method |
| US2898179A (en) * | 1955-06-01 | 1959-08-04 | Du Pont | Bleaching |
| US3033796A (en) * | 1957-01-23 | 1962-05-08 | Swift & Co | Acid pickling bath containing inhibitor and method of treating ferrous metals |
| US3140146A (en) * | 1961-02-07 | 1964-07-07 | Olin Mathieson | Continuous process for chlorite bleaching of cellulosic textiles |
| US4236891A (en) * | 1979-02-05 | 1980-12-02 | Olin Corporation | Process for textile bleaching with dibasic magnesium hypochlorite |
| US4504442A (en) * | 1982-10-19 | 1985-03-12 | Scopas Technology Corporation | Use of chlorine dioxide gas as a chemosterilizing agent |
| US4681739A (en) * | 1982-10-19 | 1987-07-21 | The Scopas Technology Co., Inc. | Use of chlorine dioxide gas as a chemosterilizing agent |
Also Published As
| Publication number | Publication date |
|---|---|
| US2711363A (en) | 1955-06-21 |
| GB696967A (en) | 1953-09-09 |
| CH291790A (de) | 1953-07-15 |
| BE500190A (en)) | |
| CH293680A (de) | 1953-10-15 |
| NL74491C (en)) | |
| FR1030121A (fr) | 1953-06-10 |
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