GB1102179A - Gold electro-plating - Google Patents

Gold electro-plating

Info

Publication number
GB1102179A
GB1102179A GB18082/66A GB1808266A GB1102179A GB 1102179 A GB1102179 A GB 1102179A GB 18082/66 A GB18082/66 A GB 18082/66A GB 1808266 A GB1808266 A GB 1808266A GB 1102179 A GB1102179 A GB 1102179A
Authority
GB
United Kingdom
Prior art keywords
deposited
gold
current density
hydrogen atoms
cathode current
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
GB18082/66A
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB1102179A publication Critical patent/GB1102179A/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)

Abstract

Gold is electro-deposited from an aqueous solution of pH 4 to 6 containing 5 to 25 g/l com as a complex cyanide salt and a guanidine compound (R1R2) N - C(NH) - N(R3R4) where R1, R2, R3, R4 are the same or different and are hydrogen atoms or alkyl groups or three of them are hydrogen atoms and the fourth is - NH2, - (CH2)3 - CH(NH2)COOH, - CH2COOH, or - (CH2)4 - NH2 or form the cyclic compounds ethylene guanidine or ethylene biguanide. Bright gold may be deposited from a bath containing 10 to 25 g/l Au and optionally formic acid at a temperature of 50 to 65 DEG C. with a cathode current density of 0.1 to 0.5 amp/dm2, while a mirror-bright gold alloy containing 1 to 3% Ni may be deposited from a bath as above containing 0.5 to 10 g/l of a nickel salt and at least 200 g/l of a reducing organic acid, e.g. formic acid, at 55 to 65 DEG C. and a cathode current density of 1 to 3 amps/dm2.
GB18082/66A 1965-05-07 1966-04-25 Gold electro-plating Expired GB1102179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2653965 1965-05-07

Publications (1)

Publication Number Publication Date
GB1102179A true GB1102179A (en) 1968-02-07

Family

ID=12196284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18082/66A Expired GB1102179A (en) 1965-05-07 1966-04-25 Gold electro-plating

Country Status (2)

Country Link
US (1) US3475290A (en)
GB (1) GB1102179A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833488A (en) * 1971-08-20 1974-09-03 Auric Corp Gold electroplating baths and process
US3856638A (en) * 1971-08-20 1974-12-24 Auric Corp Bright gold electroplating bath and method of electroplating bright gold

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1442325A (en) * 1972-07-26 1976-07-14 Oxy Metal Finishing Corp Electroplating with gold and gold alloys
US4615774A (en) * 1985-01-31 1986-10-07 Omi International Corporation Gold alloy plating bath and process
DE3509367C1 (en) * 1985-03-15 1986-08-14 Degussa Ag, 6000 Frankfurt Bath and process for electrodeposition of gold / tin alloy coatings
US4670107A (en) * 1986-03-05 1987-06-02 Vanguard Research Associates, Inc. Electrolyte solution and process for high speed gold plating

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH286122A (en) * 1952-04-28 1952-10-15 Spreter Victor Process for the deposition of gold or gold alloy coatings by galvanic means.
NL112916C (en) * 1957-08-13
US2967135A (en) * 1960-06-08 1961-01-03 Barnet D Ostrow Electroplating baths for hard bright gold deposits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833488A (en) * 1971-08-20 1974-09-03 Auric Corp Gold electroplating baths and process
US3856638A (en) * 1971-08-20 1974-12-24 Auric Corp Bright gold electroplating bath and method of electroplating bright gold

Also Published As

Publication number Publication date
US3475290A (en) 1969-10-28

Similar Documents

Publication Publication Date Title
US3580820A (en) Palladium-nickel alloy plating bath
GB1102179A (en) Gold electro-plating
GB999117A (en) Electrodeposition of nickel
US2523190A (en) Electrodeposition of nickel from an acid bath
GB880656A (en) Acid gold plating
GB1122795A (en) Improvements in corrosion-resisting decorative chromium electrolytic deposits
US2524010A (en) Electrodeposition of nickel
GB1062681A (en) Electrodeposition of palladium
GB1265472A (en)
US2781305A (en) Electrodeposition of nickel
GB880706A (en) Improvements in and relating to the electrodeposition of copper
GB1000311A (en) Electrodeposition of nickel
GB958685A (en) Improvements in or relating to palladium plating
US2765269A (en) Bath for plating bright gold
US3401097A (en) Electrodeposition of nickel
GB1294601A (en) Electrolytic plating solutions for deposition of noble metals
US3373094A (en) Gold and gold alloy electroplating
GB1056087A (en) Production of electrolytic nickel
Egeberg et al. Brighteners in Silver Plating Solutions: A Preliminary Study
GB544534A (en) Improvements relating to the electro-deposition of palladium
GB1156186A (en) Gold Plating
US2452361A (en) Method for electrolytic deposition of indium, and bath therefor
KR880010160A (en) Palladium Electroplating Baths & Plating Methods
GB910858A (en) Electrodeposition of a nickel-cobalt alloy
SU406961A1 (en) METHOD OF ELECTROLYTIC DEPOSITION OF ALLOYS