GB313135A - Improvements relating to the treatment of metals with acid liquids - Google Patents

Improvements relating to the treatment of metals with acid liquids

Info

Publication number
GB313135A
GB313135A GB17551/29A GB1755129A GB313135A GB 313135 A GB313135 A GB 313135A GB 17551/29 A GB17551/29 A GB 17551/29A GB 1755129 A GB1755129 A GB 1755129A GB 313135 A GB313135 A GB 313135A
Authority
GB
United Kingdom
Prior art keywords
tetramethyldiaminodiphenylmethane
hydrochloride
leuco
acid
mixed
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
GB17551/29A
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.)
BASF Schweiz AG
Original Assignee
Gesellschaft fuer Chemische Industrie in Basel CIBA
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 Gesellschaft fuer Chemische Industrie in Basel CIBA filed Critical Gesellschaft fuer Chemische Industrie in Basel CIBA
Publication of GB313135A publication Critical patent/GB313135A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/04Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
    • C23G1/06Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
    • C23G1/065Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors sulfur-containing compounds

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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)

Abstract

313,135. Soc. of Chemical Industry in Basle. June 7, 1928, [Convention date]. Pickling; fluxes.-Bases of the di- and triarylmethane series are added, alone or mixed together or mixed with mineral salts, sulphite cellulose liquor, a sulphonated oil, a mono- or unsymmetrical di-acylated diamine and the corresponding ammonium bases, or sulphonated tar products, to acid liquids for cleaning metal from rust, scale, &c. for use in pickling baths or as liquid soldering fluxes. Diaminodiphenylmethane, diaminoditolylmethane, diaminodinaphthylmethane, the corresponding symmetrical and unsymmetrical primary or secondary N-substitution products, for example 4:4<1>-tetramethyldiaminodiphenylmethane, the corresponding ketones as 4 : 4<1>-tetramethyldiaminobenzophenone, 3 : 3<1> - diamino-4 : 4' - dimethyldiphenylmethane, and the leuco compounds of the triarylmethane dyestuffs containing amino-groups, such as leuco-crystal violet or leuco malachite green, or the corresponding quaternary ammonium bases of any of the above, are referred to. As examples of the process, 1000 parts by weight of 15 per cent hydrochloric acid may be mixed with 0.2 part of the hydrochloride of 4 : 4<1>-tetramethyldiaminodiphenylmethane. or with 0.1 part of the hydrochloride of 3 : 3<1>-diamino-4 : 4'-dimethyldiphenylmethane, or with a mixture of 0.1 part of the hydrochloride of 4 : 4<1>-tetramethyldiaminodiphenylmethane and 0.9 part of sulphite cellulose liquor, and the resulting liquids used at once, either hot or cold, for treating metals. The additions lessen the extent to which the metal is attacked without affecting the solvent action of the acid for rust and oxide.
GB17551/29A 1928-06-07 1929-06-07 Improvements relating to the treatment of metals with acid liquids Expired GB313135A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH313135X 1928-06-07

Publications (1)

Publication Number Publication Date
GB313135A true GB313135A (en) 1930-04-24

Family

ID=4495074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17551/29A Expired GB313135A (en) 1928-06-07 1929-06-07 Improvements relating to the treatment of metals with acid liquids

Country Status (4)

Country Link
US (1) US1778634A (en)
BE (1) BE361181A (en)
FR (1) FR676096A (en)
GB (1) GB313135A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450861A (en) * 1945-04-16 1948-10-05 Dow Chemical Co Composition for descaling ferrous metal

Also Published As

Publication number Publication date
BE361181A (en)
FR676096A (en) 1930-02-18
US1778634A (en) 1930-10-14

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