JPS5531184A - Nonelectrolytic gold-plating solution - Google Patents
Nonelectrolytic gold-plating solutionInfo
- Publication number
- JPS5531184A JPS5531184A JP10509978A JP10509978A JPS5531184A JP S5531184 A JPS5531184 A JP S5531184A JP 10509978 A JP10509978 A JP 10509978A JP 10509978 A JP10509978 A JP 10509978A JP S5531184 A JPS5531184 A JP S5531184A
- Authority
- JP
- Japan
- Prior art keywords
- gold
- potassium
- plating soln
- kcn
- koh
- 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.)
- Pending
Links
Landscapes
- Chemically Coating (AREA)
Abstract
PURPOSE: To provide a stable nonelectrolytic gold-plating soln. with high gold- depositing rate compared with conventional plating soln., by the addn. of potassium borohydride in a specific ratio as a reducing agent to a soln. contg. specific amounts of potassium gold cyanide, KOH, and KCN.
CONSTITUTION: A nonelectrolytic gold-plating soln. comprising 0.1W0.4mol KOH, 0.1mol KCN, and a prescribed amount f potassium gold cyanide, further contg. 0.1W0.2mol potassium borohydride as a reducing agent. The plating soln. contg., e.g., 0.2mol KOH, 0.2mol potassium borohydride, and prescribed amounts of potassium gold cyanide and KCN shows the largest deposition rate of gold, e.g., about 10μ in one hr, 3μ or more in 10min. This plating soln. makes it easy to control the thickness of plated layer, and yields a plated gold coating of high purity.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10509978A JPS5531184A (en) | 1978-08-29 | 1978-08-29 | Nonelectrolytic gold-plating solution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10509978A JPS5531184A (en) | 1978-08-29 | 1978-08-29 | Nonelectrolytic gold-plating solution |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5531184A true JPS5531184A (en) | 1980-03-05 |
Family
ID=14398440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10509978A Pending JPS5531184A (en) | 1978-08-29 | 1978-08-29 | Nonelectrolytic gold-plating solution |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5531184A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS503743A (en) * | 1973-05-16 | 1975-01-16 |
-
1978
- 1978-08-29 JP JP10509978A patent/JPS5531184A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS503743A (en) * | 1973-05-16 | 1975-01-16 |
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