GB258724A - Improved process for the electro-deposition of chromium - Google Patents

Improved process for the electro-deposition of chromium

Info

Publication number
GB258724A
GB258724A GB2216525A GB2216525A GB258724A GB 258724 A GB258724 A GB 258724A GB 2216525 A GB2216525 A GB 2216525A GB 2216525 A GB2216525 A GB 2216525A GB 258724 A GB258724 A GB 258724A
Authority
GB
United Kingdom
Prior art keywords
per cent
chromium
copper
nickel
carbonate
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
GB2216525A
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.)
CLEMENT LOFTUS LONG
GEORGE EUAN GARDAM
Original Assignee
CLEMENT LOFTUS LONG
GEORGE EUAN GARDAM
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 CLEMENT LOFTUS LONG, GEORGE EUAN GARDAM filed Critical CLEMENT LOFTUS LONG
Priority to GB2216525A priority Critical patent/GB258724A/en
Publication of GB258724A publication Critical patent/GB258724A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium

Abstract

258,724. Long, C L., Macnaughtan, D. J, and Gardam. G. E. Sept. 4, 1925. Chromium, depositing.-The electrolyte is of chromic acid to which is added a small proportion, not exceeding 3 per cent by weight, of copper, zinc, or nickel, or a combination of these metals. The additional metal is introduced by chemical or by anodic solution, or as a salt, oxide or carbonate; it is not deposited during electrolysis. A suitable electrolyte consists of 30 per cent chromic acid, ¢-2 per cent chromium sulphate, “-2 per cent copper (introduced as carbonate), the balance being distilled water. The current density may be 200 amps. per sq. ft. and the temperature less than 20‹ C. Chromic chloride may be used instead of chromium sulphate. According to the Provisional Specification, copper, zinc, and nickel may be replaced by other common metals.
GB2216525A 1925-09-04 1925-09-04 Improved process for the electro-deposition of chromium Expired GB258724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2216525A GB258724A (en) 1925-09-04 1925-09-04 Improved process for the electro-deposition of chromium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2216525A GB258724A (en) 1925-09-04 1925-09-04 Improved process for the electro-deposition of chromium

Publications (1)

Publication Number Publication Date
GB258724A true GB258724A (en) 1926-09-30

Family

ID=10174995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2216525A Expired GB258724A (en) 1925-09-04 1925-09-04 Improved process for the electro-deposition of chromium

Country Status (1)

Country Link
GB (1) GB258724A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702785A (en) * 1950-06-16 1955-02-22 Metallgesellschaft Ag Process of producing hard chromium platings on light metals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702785A (en) * 1950-06-16 1955-02-22 Metallgesellschaft Ag Process of producing hard chromium platings on light metals

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