GB985369A - Chlorate accelerated zinc phosphate baths with added arsenate - Google Patents

Chlorate accelerated zinc phosphate baths with added arsenate

Info

Publication number
GB985369A
GB985369A GB37570/63A GB3757063A GB985369A GB 985369 A GB985369 A GB 985369A GB 37570/63 A GB37570/63 A GB 37570/63A GB 3757063 A GB3757063 A GB 3757063A GB 985369 A GB985369 A GB 985369A
Authority
GB
United Kingdom
Prior art keywords
ions
arsenate
zinc
acid
steel
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
GB37570/63A
Inventor
William A Blum
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.)
Pennwalt Corp
Original Assignee
Pennsalt Chemical 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 Pennsalt Chemical Corp filed Critical Pennsalt Chemical Corp
Publication of GB985369A publication Critical patent/GB985369A/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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • C23C22/14—Orthophosphates containing zinc cations containing also chlorate anions

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

In the deposition of zinc phosphate on steel arsenate ions are added to the phosphating solution. In an example a concentrate of (parts per cent by weight): phosphoric acid 41.0, zinc oxide 8.3, sodium chlorate 10.8, nickelous nitrate hexahydrate 9.1, disodium arsenate (anhydrous) 0.25, water 30.55, is diluted with water and sprayed on the steel for one minute at 175 DEG F. The acid ratio should be within the range of 4:1 to 15:1. The ratio can be adjusted by adding phosphoric, nitric or hydrochloric acids or zinc oxide or carbonate and sodium hydroxide. The steel may be cleaned by tetrasodium phosphate and a wetting agent or trichloroethylene or perchloroethylene. The preferred ranges of the composition are (grams per litre): nickel 0.1-7, zinc ions 0.5-10, phosphate ions 2-20, nitrate ions 0.5-20, chlorate ions 0.5-15, arsenate ions 0.01-1.0. The arsenate may be in the form of arsenic acid, Na2HAsO4, NaH2AsO4, Na3AsO4, NaAsO4 or arsenic trioxide or pentoxide. The nitrate may be in the form of nitric acid, zinc, nickel or alkali metal nitrates.
GB37570/63A 1962-10-25 1963-09-24 Chlorate accelerated zinc phosphate baths with added arsenate Expired GB985369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US233159A US3203835A (en) 1962-10-25 1962-10-25 Chlorate accelerated zinc phosphating baths with added arsenate

Publications (1)

Publication Number Publication Date
GB985369A true GB985369A (en) 1965-03-10

Family

ID=22876120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37570/63A Expired GB985369A (en) 1962-10-25 1963-09-24 Chlorate accelerated zinc phosphate baths with added arsenate

Country Status (3)

Country Link
US (1) US3203835A (en)
DE (1) DE1285832B (en)
GB (1) GB985369A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306785A (en) * 1963-06-04 1967-02-28 Du Pont Phosphatizing compositions and processes
US3617393A (en) * 1969-10-08 1971-11-02 Dainippon Toryo Kk Pretreatment before electrophoretic painting
DE3101866A1 (en) * 1981-01-22 1982-08-26 Metallgesellschaft Ag, 6000 Frankfurt METHOD FOR PHOSPHATING METALS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2314565A (en) * 1940-05-29 1943-03-23 Parker Rust Proof Co Coated ferrous article and method of making the same
US2293716A (en) * 1941-02-03 1942-08-25 Parker Rust Proof Co Metal treating solution
US2302643A (en) * 1941-05-26 1942-11-17 Parker Rust Proof Co Method and composition for treating metals
US2472864A (en) * 1947-02-07 1949-06-14 American Chem Paint Co Composition for and method of chemically coating aluminum
US2813812A (en) * 1952-06-24 1957-11-19 Parker Rust Proof Co Method for coating iron or zinc with phosphate composition and aqueous solution therefor
NL102416C (en) * 1956-02-07
AT212662B (en) * 1959-03-05 1960-12-27 Metallgesellschaft Ag Process to avoid susceptibility to corrosion when phosphating iron and steel with the help of solutions of non-layer-forming phosphates in spray systems

Also Published As

Publication number Publication date
DE1285832B (en) 1968-12-19
US3203835A (en) 1965-08-31

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