GB393039A - Improved process for producing green patina on copper and its alloys - Google Patents

Improved process for producing green patina on copper and its alloys

Info

Publication number
GB393039A
GB393039A GB675732A GB675732A GB393039A GB 393039 A GB393039 A GB 393039A GB 675732 A GB675732 A GB 675732A GB 675732 A GB675732 A GB 675732A GB 393039 A GB393039 A GB 393039A
Authority
GB
United Kingdom
Prior art keywords
copper
alloys
per cent
sulphate
improved process
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
GB675732A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB675732A priority Critical patent/GB393039A/en
Publication of GB393039A publication Critical patent/GB393039A/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
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

393,039. Electrolytic surface treatment of copper and its alloys. VERNON, W. H. J., Chemical Research Laboratory, Teddington, Middlesex. March 7, 1932, No. 6757. [Class 41.] Copper or a copper alloy is coated with green patina of basic copper sulphate by anodic treatment in an electrolyte containing a soluble sulphate and an oxidizing agent. A suitable electrolyte contains 10 per cent magnesium sulphate, 2 per cent magnesium hydroxide, and 2 per cent potassium bromate. A temperature of 95‹ C. and current density 4 amps per sq. dem. at 5 volts are suitable. Cathodes of stainless steel or carbon may be used.
GB675732A 1932-03-07 1932-03-07 Improved process for producing green patina on copper and its alloys Expired GB393039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB675732A GB393039A (en) 1932-03-07 1932-03-07 Improved process for producing green patina on copper and its alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB675732A GB393039A (en) 1932-03-07 1932-03-07 Improved process for producing green patina on copper and its alloys

Publications (1)

Publication Number Publication Date
GB393039A true GB393039A (en) 1933-06-01

Family

ID=9820212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB675732A Expired GB393039A (en) 1932-03-07 1932-03-07 Improved process for producing green patina on copper and its alloys

Country Status (1)

Country Link
GB (1) GB393039A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110248809A (en) * 2017-01-26 2019-09-17 安全创造有限责任公司 It is rusted or metal transactional cards and manufacturing method to be corroded

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110248809A (en) * 2017-01-26 2019-09-17 安全创造有限责任公司 It is rusted or metal transactional cards and manufacturing method to be corroded
CN110248809B (en) * 2017-01-26 2022-07-08 安全创造有限责任公司 Rusted or to-be-rusted metal transaction card and method of manufacture

Similar Documents

Publication Publication Date Title
GB1185527A (en) Method of Tin-plating Sheet Steel by Electro-deposition
GB495190A (en) An improved electrolytic method of coating surfaces of iron or steel
GB548184A (en) Corrosion proofing metal articles
GB404251A (en) Method of producing firmly adherent galvanic deposits on aluminium and its alloys
GB442902A (en) Process for producing porous oxide layers on aluminium and aluminium alloys for photographic purposes
US2275223A (en) Rustproof material and process
GB534471A (en) Improvements in or relating to the production of protective coatings on magnesium and magnesium alloys
GB752901A (en) Method of producing an electroplate of nickel on magnesium and the magnesium-base alloys
GB393039A (en) Improved process for producing green patina on copper and its alloys
US2464168A (en) Electrolytic iron for powder metallurgy purposes
GB579851A (en) Electro-deposition of selenium
GB1194437A (en) Improvements in Silicided Molybdenum Surfaces
GB1406568A (en) Electrolytic surface preparation process for recoating of used coated metallic electrodes
GB467267A (en) Improvements in or relating to the production of protective coatings on aluminium and aluminium alloys
GB485089A (en) Improvements in electrolytic metal treatment
GB290903A (en) A new or improved process for electro-plating the surface of aluminium or aluminium alloys
GB1228095A (en)
GB1252882A (en)
GB414966A (en) Anodic coating of zinc base metals
GB704945A (en) Improvements in or relating to electrolytes and to methods for electropolishing and electrodeburring
GB508723A (en) Process for the production of protective layers on aluminium or aluminium alloys and magnesium or magnesium alloys
Schimmel The Electrolytic Dissolution of Copper in Ammoniacal Electrolytes.
GB396743A (en) Improvements in and relating to the electrolytic treatment of aluminium and its alloys
GB1192461A (en) Electrolytic Pickling of Copper Alloys
GB274882A (en) Process for the electrolytic separation of metallic chromium for the preparation of chromium coatings on other metals