GB544534A - Improvements relating to the electro-deposition of palladium - Google Patents

Improvements relating to the electro-deposition of palladium

Info

Publication number
GB544534A
GB544534A GB5777/41A GB577741A GB544534A GB 544534 A GB544534 A GB 544534A GB 5777/41 A GB5777/41 A GB 5777/41A GB 577741 A GB577741 A GB 577741A GB 544534 A GB544534 A GB 544534A
Authority
GB
United Kingdom
Prior art keywords
palladium
grams
prepared
deposition
hydrochloric acid
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
GB5777/41A
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.)
Mond Nickel Co Ltd
Original Assignee
Mond Nickel Co 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
Priority claimed from US342286A external-priority patent/US2335821A/en
Application filed by Mond Nickel Co Ltd filed Critical Mond Nickel Co Ltd
Publication of GB544534A publication Critical patent/GB544534A/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
    • C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals

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)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

544,534. Deposition of palladium. MOND NICKEL CO., Ltd. May 3, 1941, No. 5777. Convention date, May 20, 1940. [Class 41] Palladium is deposited from a hydrochloric acid solution of the chloride having a pH value of 2.1 or below, preferably between 0 and .5, maintained by periodical addition of the acid, soluble anodes of palladium prepared by melting in vacuum or under oxidising conditions preferably being employed. The bath contains per litre from 10 to 175 grams of palladium, preferably from 25 to 50, from 50 to 700 c.c. of concentrated hydrochloric acid, and may contain ammonium chloride in an amount ranging from 2.5 to 50, preferably 20 to 50, grams. Conducting salts or buffering agents may be present. The bath is preferably air-agitated, the temperature being conveniently maintained about 50‹ C. and a current density of 10 amperes per square foot being used. With baths of high palladium concentration higher current densities can be used with insoluble anodes, the palladium content being replenished by addition of a palladium salt or solution obtained by dissolving the metal anodically prepared in a separate cell.
GB5777/41A 1940-05-20 1941-05-03 Improvements relating to the electro-deposition of palladium Expired GB544534A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA544534X 1940-05-20
US342286A US2335821A (en) 1940-05-20 1940-06-25 Palladium plating bath
US503530A US2457021A (en) 1940-05-20 1943-09-23 Palladium plating

Publications (1)

Publication Number Publication Date
GB544534A true GB544534A (en) 1942-04-16

Family

ID=32180079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5777/41A Expired GB544534A (en) 1940-05-20 1941-05-03 Improvements relating to the electro-deposition of palladium

Country Status (3)

Country Link
US (1) US2457021A (en)
FR (1) FR936824A (en)
GB (1) GB544534A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309292A (en) * 1964-02-28 1967-03-14 Richard L Andrews Method for obtaining thick adherent coatings of platinum metals on refractory metals
US3351541A (en) * 1965-01-19 1967-11-07 Gen Electric Electrodeposition of the platinum metals
US5057174A (en) * 1989-02-06 1991-10-15 Grumman Aerospace Corporation Foam tooling removal method
DE102010011269B4 (en) * 2009-11-10 2014-02-13 Ami Doduco Gmbh A method of depositing a palladium layer suitable for wire bonding onto circuit traces of a circuit board and using a palladium bath in the method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB381932A (en) * 1931-07-11 1932-10-11 Mond Nickel Co Ltd Improvements relating to the electro-deposition of palladium
US1953758A (en) * 1931-12-29 1934-04-03 Hanson Van Winkle Munning Co Cast anode
US2335821A (en) * 1940-05-20 1943-11-30 Int Nickel Co Palladium plating bath

Also Published As

Publication number Publication date
US2457021A (en) 1948-12-21
FR936824A (en) 1948-07-30

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