GB1023339A - Bright gold alloy electroplating - Google Patents

Bright gold alloy electroplating

Info

Publication number
GB1023339A
GB1023339A GB2547063A GB2547063A GB1023339A GB 1023339 A GB1023339 A GB 1023339A GB 2547063 A GB2547063 A GB 2547063A GB 2547063 A GB2547063 A GB 2547063A GB 1023339 A GB1023339 A GB 1023339A
Authority
GB
United Kingdom
Prior art keywords
gold alloy
alloy electroplating
cyanide
bright gold
alkali
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
GB2547063A
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.)
Sel Rex Corp
Original Assignee
Sel Rex 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 Sel Rex Corp filed Critical Sel Rex Corp
Publication of GB1023339A publication Critical patent/GB1023339A/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
    • C25D3/62—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of gold

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

A gold-silver alloy plating bath contains AuCN 2-40 g./l., AgCN 0.3-8 g./l., and alkali cyanide 20-200 g./l. The bath is used at 15-48 DEG C., and forms a hard undercoat for a thin high carat gold plate. Metal salts e.g. the cyanides of Fe, Co, Ni, with alkali metals or In cyanide may be added. The coating formed contains 90-500 parts Ag per 1000 of Au. Optional additions include sodium hyposulphite and Turkey Red Oil.
GB2547063A 1962-07-24 1963-06-26 Bright gold alloy electroplating Expired GB1023339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21212262A 1962-07-24 1962-07-24

Publications (1)

Publication Number Publication Date
GB1023339A true GB1023339A (en) 1966-03-23

Family

ID=22789646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2547063A Expired GB1023339A (en) 1962-07-24 1963-06-26 Bright gold alloy electroplating

Country Status (6)

Country Link
BE (1) BE638358A (en)
CH (1) CH412508A (en)
ES (1) ES290234A1 (en)
FR (1) FR1381290A (en)
GB (1) GB1023339A (en)
NL (1) NL141247B (en)

Also Published As

Publication number Publication date
BE638358A (en)
FR1381290A (en) 1964-12-14
ES290234A1 (en) 1963-12-16
NL295665A (en) 1965-05-10
CH412508A (en) 1966-04-30
NL141247B (en) 1974-02-15

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