GB738158A - Electroplating process and compositions - Google Patents

Electroplating process and compositions

Info

Publication number
GB738158A
GB738158A GB756752A GB756752A GB738158A GB 738158 A GB738158 A GB 738158A GB 756752 A GB756752 A GB 756752A GB 756752 A GB756752 A GB 756752A GB 738158 A GB738158 A GB 738158A
Authority
GB
United Kingdom
Prior art keywords
zinc
bath
copper
dithiobiuret
furfural
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
GB756752A
Inventor
Allan E Chester
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.)
Poor and Co
Original Assignee
Poor and 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 Poor and Co filed Critical Poor and Co
Priority to GB756752A priority Critical patent/GB738158A/en
Publication of GB738158A publication Critical patent/GB738158A/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
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/565—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of zinc

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

738,158. Electrodeposition of zinc-copper alloys. POOR & CO. March 24, 1952, No. 7567/52. Class 41. Dithiobiuret is added to an alkaline zinc copper cyanide bath, in amount, e.g. 0.5- 12 gms. per U.S.A. gallon, in order to extend the range of current density for which white alloys may be deposited. Zinc may be present in the bath as a zinc aldonate, preferably zinc gluconate. The weight ratio of zinc to copper in the bath may be from 85 : 15 to 70 :30. The weight ratio of total cyanide to total plating metal should be within the range 2.35 to 2.55. Brightening agents may be present which may be the reaction products described in Specification 715,849, also furfural or anisic aldehyde or piperonal each dispersed with gluconic acid, a reaction product of gelatine or of a protein rich seed meal with an aldonic acid and furfural. An example of the preparation of a bath is described which is identical with that described in Specification 717,212 except that dithiobiuret is substituted for zinc dimethyl dithiocarbamate. Chromium may be directly plated on to the alloy deposit without buffing. Specifications 641,435 and 693,592, [Group IV (b)], are referred to.
GB756752A 1952-03-24 1952-03-24 Electroplating process and compositions Expired GB738158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB756752A GB738158A (en) 1952-03-24 1952-03-24 Electroplating process and compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB756752A GB738158A (en) 1952-03-24 1952-03-24 Electroplating process and compositions

Publications (1)

Publication Number Publication Date
GB738158A true GB738158A (en) 1955-10-12

Family

ID=9835603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB756752A Expired GB738158A (en) 1952-03-24 1952-03-24 Electroplating process and compositions

Country Status (1)

Country Link
GB (1) GB738158A (en)

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