GB750803A - Improvements in or relating to dissolving exposed surfaces of nickel - Google Patents

Improvements in or relating to dissolving exposed surfaces of nickel

Info

Publication number
GB750803A
GB750803A GB1880353A GB1880353A GB750803A GB 750803 A GB750803 A GB 750803A GB 1880353 A GB1880353 A GB 1880353A GB 1880353 A GB1880353 A GB 1880353A GB 750803 A GB750803 A GB 750803A
Authority
GB
United Kingdom
Prior art keywords
nickel
cyanide
electrode
grams
aromatic compound
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
GB1880353A
Inventor
Walter Raymond Meyer
Richard Springer
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 Enthone Inc
Original Assignee
Enthone 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 Enthone Inc filed Critical Enthone Inc
Priority to GB1880353A priority Critical patent/GB750803A/en
Publication of GB750803A publication Critical patent/GB750803A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F5/00—Electrolytic stripping of metallic layers or coatings
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

An exposed surface of nickel is dissolved by means of an aqueous solution containing, per litre, at least 2,5 grams of cyanide radical from a water-soluble alkali cyanide and at least 0,15 grams of nitrobenzo-grouping of a nitro-substituted aromatic compound capable of producing an electromotive force of at least -0,9 volts between a sheet nickel electrode and a saturated potassium chloride calomel electrode, in the absence of a substantial flow of electric current between said surface and said electrode. The solution may be neutralised with caustic soda, the cyanide may be an alkali metal, alkaline earth or ammonium cyanide and the aromatic compound may be a nitrobenzoic acid, nitroaniline, nitrophenol, nitroresorcinol, nitrobenzene sulphonic acid, nitrobenzaldehyde, nitrotoluene or nitrochlorobenzene. A temperature of 70 DEG -95 DEG C. is employed and the solution should be initially substantially free from nickel, silver, gold, copper, cadmium and zinc.
GB1880353A 1953-07-07 1953-07-07 Improvements in or relating to dissolving exposed surfaces of nickel Expired GB750803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1880353A GB750803A (en) 1953-07-07 1953-07-07 Improvements in or relating to dissolving exposed surfaces of nickel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1880353A GB750803A (en) 1953-07-07 1953-07-07 Improvements in or relating to dissolving exposed surfaces of nickel

Publications (1)

Publication Number Publication Date
GB750803A true GB750803A (en) 1956-06-20

Family

ID=10118691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1880353A Expired GB750803A (en) 1953-07-07 1953-07-07 Improvements in or relating to dissolving exposed surfaces of nickel

Country Status (1)

Country Link
GB (1) GB750803A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102808A (en) * 1959-01-29 1963-09-03 Eltex Res Corp Composition for selectively stripping electroplated metals from surfaces
US3163524A (en) * 1957-09-27 1964-12-29 Eltex Chemical Corp Selective stripping of electroplated metals
US3203787A (en) * 1961-11-01 1965-08-31 Macdermid Inc Method of and composition for chemically dissolving electroless metal deposits
US3300349A (en) * 1964-04-15 1967-01-24 Boeing Co Chemical milling process and related solutions for aluminum
US3356550A (en) * 1964-03-16 1967-12-05 Boeing Co Chemical milling of aluminum alloys

Cited By (5)

* 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
US3356550A (en) * 1964-03-16 1967-12-05 Boeing Co Chemical milling of aluminum alloys
US3300349A (en) * 1964-04-15 1967-01-24 Boeing Co Chemical milling process and related solutions for aluminum

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