GB1195379A - Gold Thiomalate Electroplating Bath - Google Patents

Gold Thiomalate Electroplating Bath

Info

Publication number
GB1195379A
GB1195379A GB4242567A GB4242567A GB1195379A GB 1195379 A GB1195379 A GB 1195379A GB 4242567 A GB4242567 A GB 4242567A GB 4242567 A GB4242567 A GB 4242567A GB 1195379 A GB1195379 A GB 1195379A
Authority
GB
United Kingdom
Prior art keywords
gold
gold thiomalate
electro
thiomalate
alkali metal
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
GB4242567A
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 GB1195379A publication Critical patent/GB1195379A/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
    • C25D3/48—Electroplating: Baths therefor from solutions 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)
  • Chemically Coating (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

1,195,379. Electro-plating with bright gold. SEL-REX CORP. Sept. 18, 1967 [Oct. 6, 1966], No. 42425/67. Heading C7B. Bright gold is electro-deposited from an aqueous alkaline solution of gold thiomalate containing a soluble arsenic compound. Typically the bath contains per litre 40 to 100g thiomalic acid (2- mercaptosuccinic acid), 25 to 60g of an alkali metal or ammonium hydroxide, 4 to 8g gold added as an alkali metal-gold thiomalate, and 10 to 120 mg of arsenic, e.g. added as oxide, chloride or sodium arsenite or arsenate, the pH is 10 to 11À5, the temperature is 24 to 82‹C. and the plating current density is 2 to 10 amps/sq.ft.
GB4242567A 1966-10-06 1967-09-18 Gold Thiomalate Electroplating Bath Expired GB1195379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58467966A 1966-10-06 1966-10-06

Publications (1)

Publication Number Publication Date
GB1195379A true GB1195379A (en) 1970-06-17

Family

ID=24338367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4242567A Expired GB1195379A (en) 1966-10-06 1967-09-18 Gold Thiomalate Electroplating Bath

Country Status (4)

Country Link
CH (1) CH466661A (en)
FR (1) FR1540639A (en)
GB (1) GB1195379A (en)
NL (1) NL155316B (en)

Also Published As

Publication number Publication date
DE1621172B2 (en) 1976-03-11
NL155316B (en) 1977-12-15
FR1540639A (en) 1968-09-27
CH466661A (en) 1968-12-15
NL6713221A (en) 1968-04-08
DE1621172A1 (en) 1971-04-29

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