ES336414A1 - Acid zinc electrodepositing - Google Patents

Acid zinc electrodepositing

Info

Publication number
ES336414A1
ES336414A1 ES336414A ES336414A ES336414A1 ES 336414 A1 ES336414 A1 ES 336414A1 ES 336414 A ES336414 A ES 336414A ES 336414 A ES336414 A ES 336414A ES 336414 A1 ES336414 A1 ES 336414A1
Authority
ES
Spain
Prior art keywords
bath
protein
acid
gal
electro
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
ES336414A
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.)
Pernix Enthone SA
Original Assignee
Pernix Enthone SA
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 Pernix Enthone SA filed Critical Pernix Enthone SA
Publication of ES336414A1 publication Critical patent/ES336414A1/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
    • C25D3/22—Electroplating: Baths therefor from solutions of zinc

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)
  • Electrolytic Production Of Metals (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Zinc is electro-deposited, e.g. on steel or copper strip or sheet, or electro-ion from an acid zinc plating bath, e.g. an aqueous solution containing 40-60 oz/ga1 ZnSO 4 . H 2 0, 2-4 oz/gal H 3 B0 3 and optionally 2-4 oz/gal NH 4 F or NH 4 C1 and having a pH of 2 or 3, to which has been added a composition comprising a bath-compatible protein hydrolysate, e.g. of animal, yeast or vegetable origin, particularly an enzymatically degraded meat protein, and a soluble compound of a Group V1B metal (Cr, Mo or W), preferably a trivalent Cr salt such as chromic or chromium-ammonium sulphate Mo may be provided in the bath by ammonium heptamolybdate, Mo tetrachloride or MoO 3 , or W by phosphotungstic acid. The bath may also contain, as booster brightener and ductilizer, a bata-compatible S-containing compound capable of providing sulph-hydryl groups in the bath, e.g. an organic compound of the formula HSCH 2 COOR where R is H (i.e. thioglycollic acid), Na, K or NH 4 , or an inorganic compound such as Na 2 S 4 . The protein hydrolysate is preferably pretreated by acidifying an aqueous solution of the protein to pH 2-3À5 to form a flocculent precipitate which is separated e.g. by filtration. The additive composition may also contain a mould- and bacteriagrowth inhibitor such as a Na salt of 2, 4, 5-trichlorophenol and a perfuming agent.
ES336414A 1966-02-07 1967-02-03 Acid zinc electrodepositing Expired ES336414A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52533566A 1966-02-07 1966-02-07

Publications (1)

Publication Number Publication Date
ES336414A1 true ES336414A1 (en) 1968-06-01

Family

ID=24092809

Family Applications (1)

Application Number Title Priority Date Filing Date
ES336414A Expired ES336414A1 (en) 1966-02-07 1967-02-03 Acid zinc electrodepositing

Country Status (5)

Country Link
US (1) US3505184A (en)
DE (1) DE1621160A1 (en)
ES (1) ES336414A1 (en)
FR (1) FR1508768A (en)
GB (1) GB1176862A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251331A (en) * 1980-01-17 1981-02-17 Columbia Chemical Corporation Baths and additives for the electroplating of bright zinc
DE3540246A1 (en) * 1985-11-13 1987-05-14 Henkel Kgaa USE OF ALKOXYHYDROXY FATTY ACIDS AS CORROSION INHIBITORS IN OILS AND OIL-BASED EMULSIONS
US4780150A (en) * 1986-02-07 1988-10-25 Amchem Products, Inc. Corrosion inhibited acid cleaners
US20060180795A1 (en) * 2005-02-17 2006-08-17 Mccormick David R Stable acid inhibitor formulations with improved performance, lower toxicity and minimal environmental issues

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2097630A (en) * 1935-10-17 1937-11-02 Du Pont Plating of cadmium
US2171842A (en) * 1936-07-13 1939-09-05 Du Pont Electroplating
US2196588A (en) * 1937-05-26 1940-04-09 Du Pont Electroplating
US2451426A (en) * 1943-11-25 1948-10-12 Du Pont Bright zinc plating
BE511230A (en) * 1951-12-07
US2679475A (en) * 1952-01-21 1954-05-25 Joseph C Singler Metal blackening composition and method
US2799635A (en) * 1954-04-15 1957-07-16 Poor & Co Method of electroplating zinc and electroplating compositions
US2900313A (en) * 1956-03-06 1959-08-18 Sylvania Electric Prod Addition materials for improving plating speeds
US2886500A (en) * 1956-11-01 1959-05-12 Battelle Development Corp Electroplating of copper alloys
DE1163114B (en) * 1962-02-13 1964-02-13 Dehydag Gmbh Galvanic metal baths
US3285804A (en) * 1963-04-11 1966-11-15 Hercules Inc Covulcanizable polyether and sulfur-curable rubber laminate

Also Published As

Publication number Publication date
DE1621160A1 (en) 1971-07-29
FR1508768A (en) 1968-01-05
US3505184A (en) 1970-04-07
GB1176862A (en) 1970-01-07

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