GB1193352A - Method of Rendering the Surface of Silver Passive - Google Patents
Method of Rendering the Surface of Silver PassiveInfo
- Publication number
- GB1193352A GB1193352A GB3113867A GB3113867A GB1193352A GB 1193352 A GB1193352 A GB 1193352A GB 3113867 A GB3113867 A GB 3113867A GB 3113867 A GB3113867 A GB 3113867A GB 1193352 A GB1193352 A GB 1193352A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver
- cataphoresis
- passive
- july
- rendering
- 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
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/02—Electrophoretic coating characterised by the process with inorganic material
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Adornments (AREA)
Abstract
1,193,352. Cataphoresis. ORION R‡DIË ES VILLAMOSS‡GI VALLALAT. July 6, 1967 [July 6, 1966], No. 31138/67. Heading C7B. A method of preventing sulphide formation on a silver surface comprises rendering the surface passive by cataphoresis in an aqueous solution containing beryllium sulphate and polyvinyl alcohol, the pH of the aqueous solution being from 5À6 to 5À8. Such a solution contains colloidal beryllium oxide. Ammonium hydroxide may be used to adjust the pH to the require value. The current density of the cataphoresis may be 8-10 mA/dm<SP>2</SP>. Silver electrical contacts or jewellry may be so passivated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUOI000095 | 1966-07-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1193352A true GB1193352A (en) | 1970-05-28 |
Family
ID=11000238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3113867A Expired GB1193352A (en) | 1966-07-06 | 1967-07-06 | Method of Rendering the Surface of Silver Passive |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1621135A1 (en) |
GB (1) | GB1193352A (en) |
NL (1) | NL6708991A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020079215A1 (en) | 2018-10-19 | 2020-04-23 | Atotech Deutschland Gmbh | A method for electrolytically passivating a surface of silver, silver alloy, gold, or gold alloy |
-
1967
- 1967-06-19 DE DE1967O0012576 patent/DE1621135A1/en active Pending
- 1967-06-28 NL NL6708991A patent/NL6708991A/xx unknown
- 1967-07-06 GB GB3113867A patent/GB1193352A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020079215A1 (en) | 2018-10-19 | 2020-04-23 | Atotech Deutschland Gmbh | A method for electrolytically passivating a surface of silver, silver alloy, gold, or gold alloy |
US11447884B2 (en) | 2018-10-19 | 2022-09-20 | Atotech Deutschland GmbH & Co. KG | Method for electrolytically passivating a surface of silver, silver alloy, gold, or gold alloy |
US11851780B2 (en) | 2018-10-19 | 2023-12-26 | Atotech Deutschland GmbH & Co. KG | Method for electrolytically passivating a surface of silver, silver alloy, gold, or gold alloy |
Also Published As
Publication number | Publication date |
---|---|
NL6708991A (en) | 1968-01-08 |
DE1621135A1 (en) | 1971-04-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |