GB912128A - Method and composition for blackening metal articles - Google Patents

Method and composition for blackening metal articles

Info

Publication number
GB912128A
GB912128A GB3664860A GB3664860A GB912128A GB 912128 A GB912128 A GB 912128A GB 3664860 A GB3664860 A GB 3664860A GB 3664860 A GB3664860 A GB 3664860A GB 912128 A GB912128 A GB 912128A
Authority
GB
United Kingdom
Prior art keywords
parts
alkali metal
anilino
sulphonated
composition
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
GB3664860A
Inventor
Abraham John Mitchell
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.)
Mitchell-Bradford Chemical Co
Original Assignee
Mitchell-Bradford Chemical Co
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 Mitchell-Bradford Chemical Co filed Critical Mitchell-Bradford Chemical Co
Priority to GB3664860A priority Critical patent/GB912128A/en
Publication of GB912128A publication Critical patent/GB912128A/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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • C23C22/62—Treatment of iron or alloys based thereon

Abstract

The surfaces of metals such as ferrous metals are blackened by immersion in an aqueous solution containing in parts by weight 50 to 90 parts alkali metal hydroxide, 0.1 to 50 parts alkali metal nitrate and/or 0.1 to 50 parts alkali metal nitrite and at least one of the following: (A) a trace to 20 parts of at least one cyclic sulphur containing organic compound selected from 2-mercaptobenzothiazole, benzothiazyl di-sulphide or 2-mercaptoimidazoline; (B) from 0.0001 to 15 parts of an alkyl naphthalene sodium sulphonate; (C) from 0.0001 to 20 parts of a metallic salt of a sulphonated dye selected from di - phenyl - dis - azo - bis - 8 - amino - 1 - naphthol - 3,6 disulphonic acid, 8 - anilino - 5 - (p - hydroxy anilino) - 1 - naphthalene sulphonic acid and sulphonated anthraquinone vat dyes. The solution boils between 255 DEG F. and 325 DEG F. and the treatment is effected at boiling temperature.
GB3664860A 1960-10-25 1960-10-25 Method and composition for blackening metal articles Expired GB912128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3664860A GB912128A (en) 1960-10-25 1960-10-25 Method and composition for blackening metal articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3664860A GB912128A (en) 1960-10-25 1960-10-25 Method and composition for blackening metal articles

Publications (1)

Publication Number Publication Date
GB912128A true GB912128A (en) 1962-12-05

Family

ID=10390002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3664860A Expired GB912128A (en) 1960-10-25 1960-10-25 Method and composition for blackening metal articles

Country Status (1)

Country Link
GB (1) GB912128A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758339A1 (en) * 1997-01-14 1998-07-17 Cirdep Anticorrosion treatment of ferrous metals
WO2009050090A2 (en) * 2007-10-11 2009-04-23 Schaeffler Kg Method for coating a metallic component, especially a bearing component or a precision component, and component produced by said method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758339A1 (en) * 1997-01-14 1998-07-17 Cirdep Anticorrosion treatment of ferrous metals
WO2009050090A2 (en) * 2007-10-11 2009-04-23 Schaeffler Kg Method for coating a metallic component, especially a bearing component or a precision component, and component produced by said method
WO2009050090A3 (en) * 2007-10-11 2009-08-06 Schaeffler Kg Method for coating a metallic component, especially a bearing component or a precision component, and component produced by said method

Similar Documents

Publication Publication Date Title
GB1458644A (en) Compositions and process for blackening steel
GB912128A (en) Method and composition for blackening metal articles
GB833082A (en) An improved surface-active composition
GB590852A (en) Improvements in and relating to the treatment of phosphate-coated metal surfaces
GB700044A (en) Process for the preparation of new anthraquinone derivatives
SE8203371L (en) ELECTROPLETING COMPOSITION FOR THE DEPOSITION OF GLASSING METALLIC TIN OR ALLOYS OF TIN WITH COPPER OR RODIUM
GB882837A (en) New solvent dyes comprising salts of cationic dyestuffs
GB1059915A (en) Improvements relating to bright nickel electroplating
GB913343A (en) Solutions for the treatment of aluminium and alloys thereof
GB763981A (en) Improvements in or relating to composition and process for electroplating bright nickel
GB759675A (en) Improvements in the manufacture of merocyanine dyes
GB735933A (en) Improvements in or relating to the blacking of ferrous metal parts
GB935649A (en) Sulfated polyoxyethylated carbinamines
GB718024A (en) Improvements in and relating to methods of brightening aluminium
GB644819A (en) Dyestuff preparations comprising leuco-sulphuric ester derivatives of vat dyestuffs
GB1042298A (en) Improvements in or relating to the electrodeposition of nickel
GB464656A (en) Improvements in and relating to the process of blackening iron and steel, and protecting the same from rust
GB929745A (en) Process for dyeing or printing fibrous materials of cellulose
SU109079A1 (en) The composition of the salt bath
GB902364A (en) Process for dyeing or printing textile materials
GB830597A (en) Nickel plating by chemical means
GB900172A (en) New bis-sulphinic acid compounds
GB755784A (en) Improvements in or relating to methods of pickling and pickling compositions
GB755783A (en) Improvements in or relating to acid pickling compositions and methods of pickling
GB1112773A (en) Improvements in or relating to washing bottles and compositions therefor