GB1087351A - Corrosion inhibitors - Google Patents

Corrosion inhibitors

Info

Publication number
GB1087351A
GB1087351A GB3890364A GB3890364A GB1087351A GB 1087351 A GB1087351 A GB 1087351A GB 3890364 A GB3890364 A GB 3890364A GB 3890364 A GB3890364 A GB 3890364A GB 1087351 A GB1087351 A GB 1087351A
Authority
GB
United Kingdom
Prior art keywords
oil
benzotriazole
parts
benzimidazole
polar
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
Application number
GB3890364A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB1087351A publication Critical patent/GB1087351A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/06—Benzimidazoles; Hydrogenated benzimidazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/18—Benzimidazoles; Hydrogenated benzimidazoles with aryl radicals directly attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/24—Benzimidazoles; Hydrogenated benzimidazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
    • C07D235/30—Nitrogen atoms not forming part of a nitro radical
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/20—Antifreeze additives therefor, e.g. for radiator 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
    • C23F11/08—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Lubricants (AREA)

Abstract

A corrosion inhibitor for use in the cooling system of an internal combustion engine comprises, by weight, from 1 to 5 parts of at least one alkali metal or alkaline earth metal borate, between 0.01 and 2 parts of at least one alkali metal or alkaline earth metal nitrite, between 0.01 and 2 parts of at least one "benzotriazole compound" of formula <FORM:1087351/C4-C5/1> wherein X is nitrogen, methylidyne, aminomethylidyne, benzylidyne or guanidinomethylidyne, and R is hydrogen or alkyl, or an alkali metal when X is nitrogen, and between 0.1 and 10 parts oil inhibitor comprising a major amount of non-polar oil and a non-preferentially watersoluble polar oil in an amount sufficient to cause the mineral oil to cling to metal surfaces in the cooling system. By "non-preferentially water-soluble polar oil" is meant those oils which when mixed with equal amounts of a nonpolar oil and water are not so polar as to dissolve completely in the water; this oil may be a sulphonated petroleum or sulphonated alkylbenzene or alkyl naphthalene. The "benzotriazole compound" may be benzotriazole, sodium benzotriazole, methyl benzotriazole, benzimidazole, guanidino-benzimidazole, or 2-phenyl benzimidazole.
GB3890364A 1963-09-25 1964-09-24 Corrosion inhibitors Expired GB1087351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31149463A 1963-09-25 1963-09-25

Publications (1)

Publication Number Publication Date
GB1087351A true GB1087351A (en) 1967-10-18

Family

ID=23207142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3890364A Expired GB1087351A (en) 1963-09-25 1964-09-24 Corrosion inhibitors

Country Status (3)

Country Link
CH (1) CH440841A (en)
DE (1) DE1492525A1 (en)
GB (1) GB1087351A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112899688A (en) * 2021-01-18 2021-06-04 邓万菁 Guanidine-containing benzimidazole corrosion inhibitor and preparation method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236697A1 (en) * 1982-10-04 1984-04-05 Robert Bosch Gmbh, 7000 Stuttgart Antifreeze for compressed-air brake systems
DE3407924A1 (en) * 1984-03-03 1985-09-12 Alfons 8901 Aystetten Focker Antifreeze for central heating systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112899688A (en) * 2021-01-18 2021-06-04 邓万菁 Guanidine-containing benzimidazole corrosion inhibitor and preparation method thereof

Also Published As

Publication number Publication date
DE1492525A1 (en) 1969-06-04
CH440841A (en) 1967-07-31

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