JPS5757883A - Production of black or blue rhodium coated articles and plating bath for this - Google Patents
Production of black or blue rhodium coated articles and plating bath for thisInfo
- Publication number
- JPS5757883A JPS5757883A JP13403980A JP13403980A JPS5757883A JP S5757883 A JPS5757883 A JP S5757883A JP 13403980 A JP13403980 A JP 13403980A JP 13403980 A JP13403980 A JP 13403980A JP S5757883 A JPS5757883 A JP S5757883A
- Authority
- JP
- Japan
- Prior art keywords
- plating bath
- sulfonic acid
- salt
- acids
- articles
- 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
- 238000007747 plating Methods 0.000 title abstract 8
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910052703 rhodium Inorganic materials 0.000 title 1
- 239000010948 rhodium Substances 0.000 title 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 title 1
- 150000003839 salts Chemical class 0.000 abstract 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 3
- 150000007513 acids Chemical class 0.000 abstract 3
- 125000003118 aryl group Chemical group 0.000 abstract 3
- 230000002378 acidificating effect Effects 0.000 abstract 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 abstract 1
- 229940092714 benzenesulfonic acid Drugs 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 235000021317 phosphate Nutrition 0.000 abstract 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract 1
- 150000003016 phosphoric acids Chemical class 0.000 abstract 1
- -1 sulfates phosphates Chemical class 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical class S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
Abstract
PURPOSE: To produce titled Rh plated articles having specular gloss, and superior adhesive strength, corrosion resistance and hardness by applying plating on the surfaces of the articles to be treated by an ordinary acidic Rh plating bath added with an aromatic sulfonic acid (salt).
CONSTITUTION: An acidic Rh plating bath consisting of an Rh salt added with an aromatic sulfonic acid (salt) and free acids is used in applying plating treatment on the surfaces of decorative articles, particularly, spectacles, watched, personal ormaments, dinner ware, etc. Ordinary, for example, sulfates phosphates, etc. are employed for the Rh salt used for this plating bath, and the concn. thereof is set at customary 0.1W20g/l. Acids such as sulfuric acids, phosphoric acids and the like are used as the free acids. Further, for example, a benzene sulfonic acid is used for the aromatic sulfonic acid as the additive. Further, said plating bath is used at ≤6pH. The black or blue Rh plated articles are obtained by this plating treatment.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13403980A JPS5757883A (en) | 1980-09-25 | 1980-09-25 | Production of black or blue rhodium coated articles and plating bath for this |
| DE8181107517T DE3176572D1 (en) | 1980-09-25 | 1981-09-22 | Rhodium-plated article with black or blue color, process for making the same and bath therefor |
| EP19810107517 EP0048929B1 (en) | 1980-09-25 | 1981-09-22 | Rhodium-plated article with black or blue color, process for making the same and bath therefor |
| US06/304,939 US4416742A (en) | 1980-09-25 | 1981-09-23 | Process and electrolytic bath for making a rhodium-plated article having a black or blue color |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13403980A JPS5757883A (en) | 1980-09-25 | 1980-09-25 | Production of black or blue rhodium coated articles and plating bath for this |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5757883A true JPS5757883A (en) | 1982-04-07 |
Family
ID=15118935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13403980A Pending JPS5757883A (en) | 1980-09-25 | 1980-09-25 | Production of black or blue rhodium coated articles and plating bath for this |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5757883A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003518559A (en) * | 1999-12-23 | 2003-06-10 | デグッサ ガルファノテヒニーク ゲーエムベーハー | Tanks for electroplating high gloss white rhodium coatings and whitening agents for electroplating tanks |
-
1980
- 1980-09-25 JP JP13403980A patent/JPS5757883A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003518559A (en) * | 1999-12-23 | 2003-06-10 | デグッサ ガルファノテヒニーク ゲーエムベーハー | Tanks for electroplating high gloss white rhodium coatings and whitening agents for electroplating tanks |
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