GB910138A - Improvements in and relating to the prevention of corrosion in cooling systems - Google Patents

Improvements in and relating to the prevention of corrosion in cooling systems

Info

Publication number
GB910138A
GB910138A GB3814359A GB3814359A GB910138A GB 910138 A GB910138 A GB 910138A GB 3814359 A GB3814359 A GB 3814359A GB 3814359 A GB3814359 A GB 3814359A GB 910138 A GB910138 A GB 910138A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
phosphate
carboxylate
carbon atoms
hydroxyl groups
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
GB3814359A
Inventor
Ivor Ashton Davies
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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
Priority to NL257355D priority Critical patent/NL257355A/xx
Priority to NL121476D priority patent/NL121476C/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3814359A priority patent/GB910138A/en
Priority to DE1960J0018946 priority patent/DE1285833B/en
Priority to FR843641A priority patent/FR1273599A/en
Publication of GB910138A publication Critical patent/GB910138A/en
Expired legal-status Critical Current

Links

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
    • 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

Landscapes

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

Abstract

Corrosion is inhibited in liquid cooling systems such as that of a motor car, by using a composition comprising an alkali metal salt of a branched chain saturated acyclic carboxylic acid, an alkali metal nitrite, and a buffer agent which is an alkali metal borate or phosphate. When alcohols containing two or more hydroxyl groups are included in the cooling system the above composition prevents their deterioration. The carboxylate should preferably contain 8 or 9 carbon atoms with 5-7 in a straight chain. It is preferable to use 0,1 to 0,5 parts by weight of borate or phosphate for each part of carboxylate. The composition may be made up as a solution in an alcohol containing two or more hydroxyl groups, in water, or in mixtures thereof. Unless hard water is used for making up solutions, small amounts of calcium and magnesium salts are preferably added, usually containing anions already present in the solution. Specification 838,258 is referred to.ALSO:Alcohols containing two or more hydroxyl groups are stabilized by a mixture of an alkali metal salt of a branched chain acyclic saturated aliphatic carboxylic acid, an alkali metal nitrite and an alkali metal borate or phosphate. Examples are given in which ethylene glycol is used. Also mentioned are propylene glycol, glycerol, erythritol, mannitol and sorbitol. The carboxylate preferably contains 8 or 9 carbon atoms with 5 to 7 carbon atoms in a straight chain. Specification 838,258 is referred to.
GB3814359A 1959-11-10 1959-11-10 Improvements in and relating to the prevention of corrosion in cooling systems Expired GB910138A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL257355D NL257355A (en) 1959-11-10
NL121476D NL121476C (en) 1959-11-10
GB3814359A GB910138A (en) 1959-11-10 1959-11-10 Improvements in and relating to the prevention of corrosion in cooling systems
DE1960J0018946 DE1285833B (en) 1959-11-10 1960-11-02 Corrosion inhibitor
FR843641A FR1273599A (en) 1959-11-10 1960-11-10 Improvements to prevent corrosion in cooling systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3814359A GB910138A (en) 1959-11-10 1959-11-10 Improvements in and relating to the prevention of corrosion in cooling systems
GB611960 1960-02-22

Publications (1)

Publication Number Publication Date
GB910138A true GB910138A (en) 1962-11-07

Family

ID=26240449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3814359A Expired GB910138A (en) 1959-11-10 1959-11-10 Improvements in and relating to the prevention of corrosion in cooling systems

Country Status (3)

Country Link
DE (1) DE1285833B (en)
GB (1) GB910138A (en)
NL (2) NL121476C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099598A1 (en) * 1982-06-26 1984-02-01 Metallgesellschaft Ag Solution for the anti-corrosive treatment of metallic surfaces, and concentrate for preparing it
EP0652305A1 (en) * 1993-11-04 1995-05-10 Nalco Chemical Company Closed cooling system corrosion inhibitors
EP0556087B1 (en) * 1992-02-14 1999-08-04 Elf Atochem S.A. Use of a composition consisting of heptanoie acid or a derivative thereof and sodium tetraborate as copper corrosion inhibitor.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099598A1 (en) * 1982-06-26 1984-02-01 Metallgesellschaft Ag Solution for the anti-corrosive treatment of metallic surfaces, and concentrate for preparing it
EP0556087B1 (en) * 1992-02-14 1999-08-04 Elf Atochem S.A. Use of a composition consisting of heptanoie acid or a derivative thereof and sodium tetraborate as copper corrosion inhibitor.
EP0652305A1 (en) * 1993-11-04 1995-05-10 Nalco Chemical Company Closed cooling system corrosion inhibitors

Also Published As

Publication number Publication date
NL257355A (en)
NL121476C (en)
DE1285833B (en) 1968-12-19

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