GB367588A - Improvements in or relating to the electrodeposition of the metals of the platinum group - Google Patents

Improvements in or relating to the electrodeposition of the metals of the platinum group

Info

Publication number
GB367588A
GB367588A GB7603/31A GB760331A GB367588A GB 367588 A GB367588 A GB 367588A GB 7603/31 A GB7603/31 A GB 7603/31A GB 760331 A GB760331 A GB 760331A GB 367588 A GB367588 A GB 367588A
Authority
GB
United Kingdom
Prior art keywords
sodium
double
metals
deposited
electrodeposition
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
GB7603/31A
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.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey PLC
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 Johnson Matthey PLC filed Critical Johnson Matthey PLC
Priority to GB7603/31A priority Critical patent/GB367588A/en
Publication of GB367588A publication Critical patent/GB367588A/en
Priority to US597632A priority patent/US2027358A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/50Electroplating: Baths therefor from solutions of platinum group metals

Abstract

367,588. Electrodeposition of platinum, palladium, rhodium, and their alloys. POWELL, A. R., DAVIES, E. C., and JOHNSON, MATTHEY, & CO., Ltd., 78, Hatton Garden, London. March 12, 1931, No. 7603. [Class 41.] The metals are deposited from solutions of their double nitrites with sodium or any other metal which forms a stable and soluble double salt and is not itself deposited. The preferred bath contains 1-1À5 per cent of the platinum group metal as double sodium nitrite. The bath may be neutral but is preferably slightly acidified with about 5 per cent of phosphoric acid, or with sulphuric, oxalic, or other acid which is not decomposed by the current. The throwing power may be improved by addition of a conducting salt such as sodium sulphate. Alloys of the metals with one another in any desired proportion may be deposited from a mixture of their double nitrites, e.g. a mixture of sodium platinonitrite and sodium rhodonitrite. The baths are operated above 40‹ C., preferably at 65-80‹ C.
GB7603/31A 1931-03-12 1931-03-12 Improvements in or relating to the electrodeposition of the metals of the platinum group Expired GB367588A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB7603/31A GB367588A (en) 1931-03-12 1931-03-12 Improvements in or relating to the electrodeposition of the metals of the platinum group
US597632A US2027358A (en) 1931-03-12 1932-03-08 Electrodeposition of metals of the platinum group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7603/31A GB367588A (en) 1931-03-12 1931-03-12 Improvements in or relating to the electrodeposition of the metals of the platinum group

Publications (1)

Publication Number Publication Date
GB367588A true GB367588A (en) 1932-02-25

Family

ID=9836290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7603/31A Expired GB367588A (en) 1931-03-12 1931-03-12 Improvements in or relating to the electrodeposition of the metals of the platinum group

Country Status (2)

Country Link
US (1) US2027358A (en)
GB (1) GB367588A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328286A (en) 1979-04-26 1982-05-04 The International Nickel Co., Inc. Electrodeposited palladium, method of preparation and electrical contact made thereby

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL123540C (en) * 1958-08-06
NL122582C (en) * 1958-08-06
GB897690A (en) * 1959-09-30 1962-05-30 Johnson Matthey Co Ltd Improvements in and relating to the electrodeposition of platinum or palladium
US3340097A (en) * 1964-01-22 1967-09-05 Air Prod & Chem Fuel cell electrode having surface co-deposit of platinum, tin and ruthenium
GB1035850A (en) * 1964-06-12 1966-07-13 Johnson Matthey Co Ltd Improvements in and relating to the electrodeposition of palladium
US3423226A (en) * 1965-06-28 1969-01-21 Mc Donnell Douglas Corp Plating of non-metallic bodies
US3437507A (en) * 1965-07-16 1969-04-08 Mc Donnell Douglas Corp Plating of substrates
US3748712A (en) * 1971-03-30 1973-07-31 Franklin Mint Corp Tarnish resistant plating for silver articles
CA1089796A (en) * 1976-11-17 1980-11-18 Thomas F. Davis Electroplating palladium
US4092225A (en) * 1976-11-17 1978-05-30 Amp Incorporated High efficiency palladium electroplating process, bath and composition therefor
US6306277B1 (en) 2000-01-14 2001-10-23 Honeywell International Inc. Platinum electrolyte for use in electrolytic plating
DE102008050135B4 (en) * 2008-10-04 2010-08-05 Umicore Galvanotechnik Gmbh Process for depositing platinum rhodium layers with improved brightness
CN106435666B (en) * 2016-11-22 2018-12-18 中国科学院金属研究所 A method of high-temperature alloy surface deposition layer is prepared using neutral platinum plating solution

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328286A (en) 1979-04-26 1982-05-04 The International Nickel Co., Inc. Electrodeposited palladium, method of preparation and electrical contact made thereby

Also Published As

Publication number Publication date
US2027358A (en) 1936-01-07

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