GB998279A - Improvements in zinc electroplating with brightener compositions for cyanide baths - Google Patents
Improvements in zinc electroplating with brightener compositions for cyanide bathsInfo
- Publication number
- GB998279A GB998279A GB34967/61A GB3496761A GB998279A GB 998279 A GB998279 A GB 998279A GB 34967/61 A GB34967/61 A GB 34967/61A GB 3496761 A GB3496761 A GB 3496761A GB 998279 A GB998279 A GB 998279A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aldehyde
- vanillin
- baths
- gms
- litre
- 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
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
- C25D3/24—Electroplating: Baths therefor from solutions of zinc from cyanide baths
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Alkali zinc cyanide baths for electroplating bright, lustrous zinc deposits include o-vanillin and an aromatic aldehyde(s), selected from anisaldehyde, piperonaldehyde, veratraldehyde and 2,3-dimethoxybenzaldehyde. The relative proportion of o-vanillin to the other aldehyde(s) in the brightener combination should be at least 1 : 10 and may be as much as 1 : 1, preferably in the range 1:4 to 1:1. Total aldehyde content preferred is 0.10 gms./litre to 0.50 gms./litre. The aldehydes here mentioned are preferably solubilized in aqueous zinc cyanide electroplating baths by heating the mixture of the aldehydes with sodium bisulphite in at least 1:1 molar ratio to form aldehyde-bisulphite adducts, i.e. 1 mole of o-vanillin, 1 mole of other aldehyde and not less than 2 moles of sodium bisulphite. Small amounts of animal gelatin, glue and polyvinyl alcohol may be added.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67497A US3088884A (en) | 1960-11-07 | 1960-11-07 | Electrodeposition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB998279A true GB998279A (en) | 1965-07-14 |
Family
ID=22076373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34967/61A Expired GB998279A (en) | 1960-11-07 | 1961-09-28 | Improvements in zinc electroplating with brightener compositions for cyanide baths |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3088884A (en) |
| DE (1) | DE1193334B (en) |
| FR (1) | FR1304774A (en) |
| GB (1) | GB998279A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1051624A (en) * | 1963-05-21 | |||
| US3296104A (en) * | 1963-10-29 | 1967-01-03 | Hanson Van Winkle Munning Co | Electrodeposition of zinc from pyrophosphate solutions |
| US3296105A (en) * | 1964-04-03 | 1967-01-03 | Du Pont | Zinc cyanide electroplating bath and process |
| US3472743A (en) * | 1966-12-19 | 1969-10-14 | Du Pont | Zinc plating baths and additives therefor |
| US3620938A (en) * | 1968-12-11 | 1971-11-16 | Stauffer Chemical Co | Method for obtaining a bright zinc coating by electrodeposition and the bath used therefor |
| US3850766A (en) * | 1974-03-28 | 1974-11-26 | Sterwin Chem Inc | Electroplating brightener compositions and process |
| CN104152950A (en) * | 2014-08-20 | 2014-11-19 | 王新民 | Cyaniding tinning liquid |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE713678C (en) * | 1937-06-04 | 1941-11-13 | Friedr Blasberg Elektrochem Fa | Process for the production of shiny zinc coatings |
| DE756827C (en) * | 1940-01-14 | 1953-05-26 | Friedr Blasberg Elektrochem Fa | Process for the production of shiny zinc coatings from cyankali baths |
| FR1060233A (en) * | 1952-07-11 | 1954-03-31 | Parker Ste Continentale | Improved process and baths for obtaining electrolytic deposits of zinc and its alloys |
| US2740754A (en) * | 1952-11-07 | 1956-04-03 | Allied Res Products Inc | Zinc plating brightener |
-
1960
- 1960-11-07 US US67497A patent/US3088884A/en not_active Expired - Lifetime
-
1961
- 1961-09-28 GB GB34967/61A patent/GB998279A/en not_active Expired
- 1961-10-30 FR FR877404A patent/FR1304774A/en not_active Expired
- 1961-11-02 DE DEM50771A patent/DE1193334B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3088884A (en) | 1963-05-07 |
| FR1304774A (en) | 1962-09-28 |
| DE1193334B (en) | 1965-05-20 |
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