ES375291A1 - A method for the adherent, brilliant gold electrodeposition. (Machine-translation by Google Translate, not legally binding) - Google Patents

A method for the adherent, brilliant gold electrodeposition. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES375291A1
ES375291A1 ES375291A ES375291A ES375291A1 ES 375291 A1 ES375291 A1 ES 375291A1 ES 375291 A ES375291 A ES 375291A ES 375291 A ES375291 A ES 375291A ES 375291 A1 ES375291 A1 ES 375291A1
Authority
ES
Spain
Prior art keywords
adherent
translation
machine
bath
legally binding
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
ES375291A
Other languages
Spanish (es)
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.)
BASF Catalysts UK Holdings Ltd
Original Assignee
Engelhard Industries Ltd
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 Engelhard Industries Ltd filed Critical Engelhard Industries Ltd
Publication of ES375291A1 publication Critical patent/ES375291A1/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

Abstract

Bright gold plate, i.e. of at least 23 Kt, is electro-deposited from a bath containing an alkali metal gold cyanide and a chelate derived from a base or noble metal compound, e.g. of nickel cobalt, copper, cadmium, zinc, indium, tin, arsenic, antimony or silver, and heptonic acid or gluconic acid, the bath including a buffering agent such as acetic, citric, tartaric, lactic or kojic acids. The pH may be adjusted by addition of ammonia, and the bath may also contain potassium pyrophosphate or sulphamic acid. The anodes used may be of platinum, platinum-coated titanium or stainless steel.
ES375291A 1969-01-10 1970-01-09 A method for the adherent, brilliant gold electrodeposition. (Machine-translation by Google Translate, not legally binding) Expired ES375291A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB171769 1969-01-10

Publications (1)

Publication Number Publication Date
ES375291A1 true ES375291A1 (en) 1972-08-16

Family

ID=9726796

Family Applications (1)

Application Number Title Priority Date Filing Date
ES375291A Expired ES375291A1 (en) 1969-01-10 1970-01-09 A method for the adherent, brilliant gold electrodeposition. (Machine-translation by Google Translate, not legally binding)

Country Status (7)

Country Link
BE (1) BE744272A (en)
CH (1) CH525962A (en)
DK (1) DK136624B (en)
ES (1) ES375291A1 (en)
FR (1) FR2028113A1 (en)
GB (1) GB1251593A (en)
NL (1) NL7000230A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536717B2 (en) * 1972-04-03 1980-09-22
CN106637307B (en) * 2017-01-04 2019-01-01 中国地质大学（武汉） A kind of additive for gold without cyanogen electroforming process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967135A (en) * 1960-06-08 1961-01-03 Barnet D Ostrow Electroplating baths for hard bright gold deposits
FR1539226A (en) * 1966-09-16 1968-09-13 Process for producing deposits of gold or a gold-based alloy

Also Published As

Publication number Publication date
BE744272A (en) 1970-07-09
CH525962A (en) 1972-07-31
GB1251593A (en) 1971-10-27
NL7000230A (en) 1970-07-14
DK136624B (en) 1977-10-31
DK136624C (en) 1978-04-03
FR2028113A1 (en) 1970-10-09

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