GB1171742A - Compositions for and Method of Selectively Dissolving Nickel from other Metals - Google Patents

Compositions for and Method of Selectively Dissolving Nickel from other Metals

Info

Publication number
GB1171742A
GB1171742A GB0857/68A GB185768A GB1171742A GB 1171742 A GB1171742 A GB 1171742A GB 0857/68 A GB0857/68 A GB 0857/68A GB 185768 A GB185768 A GB 185768A GB 1171742 A GB1171742 A GB 1171742A
Authority
GB
United Kingdom
Prior art keywords
sodium
ammonium
copper
pyrophosphate
potassium
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
Application number
GB0857/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MacDermid Inc
Original Assignee
MacDermid Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MacDermid Inc filed Critical MacDermid Inc
Publication of GB1171742A publication Critical patent/GB1171742A/en
Expired legal-status Critical Current

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
    • 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
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/32—Alkaline compositions
    • C23F1/40—Alkaline compositions for etching other metallic material

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)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Chemically Coating (AREA)

Abstract

1,171,742. Chemically stripping nickel. MACDERMID Inc. Jan. 12, 1968 [June 30, 1967], No. 1857/68. Heading C7D. An aqueous solution for dissolving a nickel deposit with or without copper from a substrate which may be copper or copper clad, has a pH of 8-11 and consists of (a) a water-soluble sodium, potassium, ammonium or lithium poly-phosphate or mixture thereof; (b) an organic oxidizing agent consisting of either a compound having at least one nitro group attached to a benzene ring which ring also carries a watersolubilizing radical, or a water-soluble nitrosubstituted aliphatic compound having 1-3 carbon atoms in the chain; (c) a base of ammonia (e. NH 4 OH), or ethylenediamine; and (d) a sodium, potassium, ammonium or lithium thiosulphate or mixture thereof. Components (a), (b) and (d) are present in amounts up to their limiting solubilities. Components (a) and (b) are preferably present in stoichiometric amounts. Specified poly-phosphates are sodium acid pyrophosphate, tetrasodium pyrophosphate, ammonium-sodium pyrophosphate, sodium hexametaphosphate and sodium tripolyphosphate. Specified organic oxidizing agents are sodium nitrobenzene sulphonate, nitrobenzoic acid and nitrobenzoates, nitrophenol, nitroaniline, sodium nitrophthalate, nitromethane, nitroethane and nitropropane.
GB0857/68A 1967-06-30 1968-01-12 Compositions for and Method of Selectively Dissolving Nickel from other Metals Expired GB1171742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65017767A 1967-06-30 1967-06-30

Publications (1)

Publication Number Publication Date
GB1171742A true GB1171742A (en) 1969-11-26

Family

ID=24607813

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0857/68A Expired GB1171742A (en) 1967-06-30 1968-01-12 Compositions for and Method of Selectively Dissolving Nickel from other Metals

Country Status (2)

Country Link
US (1) US3460938A (en)
GB (1) GB1171742A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320344A1 (en) * 1975-08-05 1977-03-04 M & T Chemicals Inc COMPOSITION AND METHOD FOR REMOVING NICKEL AND NICKEL ALLOYS FROM A METAL SURFACE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849218A (en) * 1973-03-13 1974-11-19 Conversion Chem Corp Composition and method for stripping nickel, zinc and cadmium from substrates of iron and copper
US4052254A (en) * 1975-08-05 1977-10-04 M & T Chemicals Inc. Stripping of electroplated nickel-iron alloys from ferrous substrates

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163524A (en) * 1957-09-27 1964-12-29 Eltex Chemical Corp Selective stripping of electroplated metals
US3102808A (en) * 1959-01-29 1963-09-03 Eltex Res Corp Composition for selectively stripping electroplated metals from surfaces
US3203787A (en) * 1961-11-01 1965-08-31 Macdermid Inc Method of and composition for chemically dissolving electroless metal deposits
US3351556A (en) * 1965-03-24 1967-11-07 Macdermid Inc Methods and compositions for stripping nickel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320344A1 (en) * 1975-08-05 1977-03-04 M & T Chemicals Inc COMPOSITION AND METHOD FOR REMOVING NICKEL AND NICKEL ALLOYS FROM A METAL SURFACE

Also Published As

Publication number Publication date
US3460938A (en) 1969-08-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees