GB652339A - Compositions for inhibiting metal tarnish - Google Patents

Compositions for inhibiting metal tarnish

Info

Publication number
GB652339A
GB652339A GB29010/48D GB2901048D GB652339A GB 652339 A GB652339 A GB 652339A GB 29010/48 D GB29010/48 D GB 29010/48D GB 2901048 D GB2901048 D GB 2901048D GB 652339 A GB652339 A GB 652339A
Authority
GB
United Kingdom
Prior art keywords
benzimidazole
per cent
phosphate
nucleus
methyl
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
GB29010/48D
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of GB652339A publication Critical patent/GB652339A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/28—Heterocyclic compounds containing nitrogen in the ring
    • 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
    • C23F11/10—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 using organic inhibitors
    • C23F11/14—Nitrogen-containing compounds
    • C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The tarnishing of non-ferrous metals and alloys such as copper, brass and German silver, caused by contact with a calcium sequestering phosphate such as tetrasodium pyrophosphate or hexasodium tetraphosphate, is inhibited by dissolving in the solution at least 0.001 per cent and at the most 5 per cent by weight on the said phosphate of a compound having a nucleus <FORM:0652339/I/1> where X is tetravalent carbon or trivalent nitrogen, the dotted lines indicating that the two adjacent carbon atoms, and/or the nitrogen atom and X, may be attached by double bonds. Photographic developers are excluded from such solutions. Compounds specified as having the above nucleus are ethylene thiourea, benzotriazole, 2-methyl imidazole, 4-methyl imidazole, benzimidazole, 5-methyl benzimidazole, 2-amino benzimidazole, histidine, adenine, guanine, xanthine, creatinine, allantoin and dimethyl hydantoin. Inorganic compounds such as sodium chloride or sulphate, and synthetic detergents may be added. U.S.A. Specifications 1,956,515, 2,031,827 and 2,395,971 are referred to.
GB29010/48D 1947-12-09 1948-11-08 Compositions for inhibiting metal tarnish Expired GB652339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US652339XA 1947-12-09 1947-12-09

Publications (1)

Publication Number Publication Date
GB652339A true GB652339A (en) 1951-04-18

Family

ID=22061265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29010/48D Expired GB652339A (en) 1947-12-09 1948-11-08 Compositions for inhibiting metal tarnish

Country Status (1)

Country Link
GB (1) GB652339A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594184A (en) * 1985-05-23 1986-06-10 The Procter & Gamble Company Chlorine bleach compatible liquid detergent compositions
EP0769573B1 (en) * 1995-08-28 2000-03-22 BP Chemicals Limited Process for reducing aluminium corrosion and use of a corrosion inhibitor in antifreeze compositions
CN102124414A (en) * 2009-04-17 2011-07-13 长瀬化成株式会社 Photoresist remover composition and method for removing photoresist

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594184A (en) * 1985-05-23 1986-06-10 The Procter & Gamble Company Chlorine bleach compatible liquid detergent compositions
EP0769573B1 (en) * 1995-08-28 2000-03-22 BP Chemicals Limited Process for reducing aluminium corrosion and use of a corrosion inhibitor in antifreeze compositions
CN102124414A (en) * 2009-04-17 2011-07-13 长瀬化成株式会社 Photoresist remover composition and method for removing photoresist
CN102124414B (en) * 2009-04-17 2014-04-02 长瀬化成株式会社 Photoresist remover composition and method for removing photoresist

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