GB1155865A - Stripping Nickel from Metal Substrates - Google Patents
Stripping Nickel from Metal SubstratesInfo
- Publication number
- GB1155865A GB1155865A GB2970266A GB2970266A GB1155865A GB 1155865 A GB1155865 A GB 1155865A GB 2970266 A GB2970266 A GB 2970266A GB 2970266 A GB2970266 A GB 2970266A GB 1155865 A GB1155865 A GB 1155865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cooh
- acids
- choh
- water soluble
- ammonium
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
1,155,865. Ni stripping solution. PERNIX ENTHONE. July 1, 1966 [July 1, 1965], No. 29702/66. Headings C7D and C7E. Nickel is stripped from metallic bases (e.g. steel, copper or brass using an aqueous solution consisting of (1) 30 - 12 g/l of a nitro substituted, mononuclear carboxylic aromatic compound with at least one NO 2 <SP>1</SP> group and a water solubilizing group (e.g. - COOH - SO 3 H or salts thereof) attached to the benzene ring, (2) 45 - 135 g/l (expressed as free acid) of one or more of the tri-basic carboxylic acids of the formula and water soluble salts thereof (wherein R 1 is -CH 2 - or - CHOH - and R 2 is - CH - or - COH-) the dicarboxylic acids of the formula HOOC - (CH 2 )n - COOH and water soluble salts thereof (wherein n is an integer from 1 - 4) and the α - hydroxy mono- or dicarboxylic acids of the formula R 1 - (R 2 )n - CHOH COOH and water soluble salts thereof (wherein R 1 is -H or -COOH, R 2 is -CH 2 - or -CHOH- and n is 0, 1, 2, 3 or 4. (3) an ammonium salt of the above acids or ammonium carbonate in an amount sufficient to maintain a pH of 6À8 up to, but below, the pH when the Ni ions start to be complexed by NH 3 instead of by the carboxylic acid, as evidenced by a change in the bath colour from green to blue and (4) 0À075 - 3À75 g/l of this compound as an inhibitor, which will yield S containing ions with S in the - 2 oxidation state in the solution, the pH thereof being in the range set out above. The solution may also contain a wetting agent (e. g. an alkaryl sulphonate and a supplementary inhibitor (e.g. a borate) may be present when the base is a steel. Preferable compounds from the above groups are;- (1) sodium meta nitrobenzoate or sodium meta nitrobenzene sulphonate, (2) adipic citric, gluconic, glycollic, lactic, malic, succinic or tartaric acids, and (4) thiourea, mercapto-benzothiazole, ammonium thiosulphate or ammonium thiocyanate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US46885665A | 1965-07-01 | 1965-07-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1155865A true GB1155865A (en) | 1969-06-25 |
Family
ID=23861526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2970266A Expired GB1155865A (en) | 1965-07-01 | 1966-07-01 | Stripping Nickel from Metal Substrates |
Country Status (5)
Country | Link |
---|---|
BR (1) | BR6680464D0 (en) |
DE (1) | DE1621634A1 (en) |
ES (1) | ES328510A1 (en) |
GB (1) | GB1155865A (en) |
SE (1) | SE328170B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2072639A1 (en) * | 2007-12-12 | 2009-06-24 | Rohm and Haas Electronic Materials LLC | Method for adhesion promotion between the nickel and nickel alloy layer and another metal or a dielectric, such as in the manufacture of lead frames for semiconductor devices |
CN112410791A (en) * | 2020-04-03 | 2021-02-26 | 上海昕沐化学科技有限公司 | High-speed environment-friendly chemical stripping solution for nickel coating and preparation method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111235619B (en) * | 2020-01-15 | 2022-05-31 | 东莞市四辉表面处理科技有限公司 | Efficient nickel-removing cleaning powder after hole sealing of aluminum anode and preparation method thereof |
-
1966
- 1966-06-16 BR BR18046466A patent/BR6680464D0/en unknown
- 1966-06-28 SE SE877666A patent/SE328170B/xx unknown
- 1966-06-28 ES ES0328510A patent/ES328510A1/en not_active Expired
- 1966-06-29 DE DE19661621634 patent/DE1621634A1/en active Pending
- 1966-07-01 GB GB2970266A patent/GB1155865A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2072639A1 (en) * | 2007-12-12 | 2009-06-24 | Rohm and Haas Electronic Materials LLC | Method for adhesion promotion between the nickel and nickel alloy layer and another metal or a dielectric, such as in the manufacture of lead frames for semiconductor devices |
CN112410791A (en) * | 2020-04-03 | 2021-02-26 | 上海昕沐化学科技有限公司 | High-speed environment-friendly chemical stripping solution for nickel coating and preparation method thereof |
CN112410791B (en) * | 2020-04-03 | 2023-01-10 | 上海昕沐化学科技有限公司 | High-speed environment-friendly chemical stripping solution for nickel coating and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
BR6680464D0 (en) | 1973-08-28 |
SE328170B (en) | 1970-09-07 |
ES328510A1 (en) | 1967-08-16 |
DE1621634A1 (en) | 1971-06-03 |
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