GB585107A - Improvements in or relating to the electrodeposition of silver - Google Patents
Improvements in or relating to the electrodeposition of silverInfo
- Publication number
- GB585107A GB585107A GB824/45A GB82445A GB585107A GB 585107 A GB585107 A GB 585107A GB 824/45 A GB824/45 A GB 824/45A GB 82445 A GB82445 A GB 82445A GB 585107 A GB585107 A GB 585107A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver
- gallon
- per
- bath
- cyanide
- 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
- C25D3/46—Electroplating: Baths therefor from solutions of silver
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)
- Thermistors And Varistors (AREA)
Abstract
585,107. Electrodeposition of silver. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 10, 1945, No. 824. Convention date, Jan. 11, 1944. [Class 41] Silver is deposited from a bath containing silver and alkali metal cyanides with the addition of a small amount of 2-mercaptobenzothiazole, 2-mercaptothiazole, 2-mercaptothiazoline, thioacetanilide or trimercaptocyanuric acid as a brightening agent. A suitable amount of the addition agent is 0.01-1 oz. per U.S.A. gallon, where 2-mercaptobenzothiazole is employed the amount is preferably 0.01-0.5 oz. per U.S.A. gallon. Baths containing potassium cyanide are preferred, but cyanides of sodium, lithium, rubidium or caesium may also be employed. The free alkali-metal cyanide content is preferably 6-12 oz. per U.S.A. gallon. Alkali metal hydroxide or carbonate may also be present. An example of a suitable bath is silver cyanide 10 oz., potassium cyanide 16 oz., potassium hydroxide 1 oz per U.S.A. gallon. The addition agent is preferably dissolved in a small amount of alkali metal hydroxide or of the plating solution before addition. Bright deposits are obtained over a wide range of current density which is extended by movement of the electrodes or bath agitation. The bath temperature may be 21‹-43‹C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US517841A US2429970A (en) | 1944-01-11 | 1944-01-11 | Silver plating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB585107A true GB585107A (en) | 1947-01-30 |
Family
ID=24061447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB824/45A Expired GB585107A (en) | 1944-01-11 | 1945-01-10 | Improvements in or relating to the electrodeposition of silver |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2429970A (en) |
| GB (1) | GB585107A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3222195A (en) * | 1962-02-23 | 1965-12-07 | Pearlstein Fred | Stabilized electroless copper solution |
| US4247372A (en) * | 1978-08-29 | 1981-01-27 | Learonal, Inc. | Silver plating |
| SE8206158L (en) * | 1982-10-29 | 1984-04-30 | Hans G Wahlbeck | PROCEDURE AND DEVICE FOR THE PREPARATION OF ALLERGY FREE Precious Metal Forms |
| US4614568A (en) * | 1983-06-14 | 1986-09-30 | Nihon Kogyo Kabushiki Kaisha | High-speed silver plating and baths therefor |
| CN103451692A (en) * | 2012-05-31 | 2013-12-18 | 际华三五二二装具饰品有限公司 | Silver electroplating solution |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1857507A (en) * | 1929-10-22 | 1932-05-10 | Eastman Kodak Co | Process for the separation of silver by electrolysis |
| US2110792A (en) * | 1936-03-23 | 1938-03-08 | Int Silver Co | Process for electrodeposition of silver and products obtained therefrom |
-
1944
- 1944-01-11 US US517841A patent/US2429970A/en not_active Expired - Lifetime
-
1945
- 1945-01-10 GB GB824/45A patent/GB585107A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2429970A (en) | 1947-10-28 |
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