GB186635A - Manufacture of chromium compounds of azo-dyestuffs - Google Patents

Manufacture of chromium compounds of azo-dyestuffs

Info

Publication number
GB186635A
GB186635A GB851621A GB851621A GB186635A GB 186635 A GB186635 A GB 186635A GB 851621 A GB851621 A GB 851621A GB 851621 A GB851621 A GB 851621A GB 186635 A GB186635 A GB 186635A
Authority
GB
United Kingdom
Prior art keywords
compounds
chromium
diazotized
dyestuff
amino
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
GB851621A
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
Priority to GB851621A priority Critical patent/GB186635A/en
Publication of GB186635A publication Critical patent/GB186635A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/01Complex metal compounds of azo dyes characterised by the method of metallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Abstract

The chromium compounds of chromable azo dyes described in the parent Specification are prepared by treating the dyestuffs in question in alkaline solution with the complex chromium compounds made by action of alkaline suspensions of chromium hydroxide on organic compounds containing more than one hydroxyl group. The process permits the use of iron vessels. According to examples:-(1) the dyestuff from diazotized 1-amino-2-oxynaphthalene-4-sulphonic acid and a -naphthol, or that from diazotized 1-oxy-2-amino-4-methylbenzene-6-sulphonic acid and b -naphthol is refluxed with the product made by heating glycerin with caustic potash and chromium hydroxide paste; after diluting with water and neutralizing free alkali the dyestuff is salted out; (2) the dyestuff from diazotized 1-oxybenzene-2-amino-4-chloro-6-sulphonic acid and 1-phenyl-3-methyl-5-pyrazolone is boiled with the chromium compound from gallic acid or glucose, the free alkali neutralized and the chromium compound salted out. The products dye wool blue, violet or red shades fast to light and fulling. Complex chromium compounds of organic compounds containing more than one hydroxyl group are obtained by heating with alkaline suspensions of chromium hydroxide the parent compounds, for instance, polyhydric alcohols and phenols, tanning agents, sugars, degradation products of cellulose, and waste products from sulphite cellulose manufacture; glycerol, glycol, glucose, tannin, gallic acid and phloroglucinol are mentioned. The compounds may in part be separated from their aqueous solutions by evaporation or by salting out.ALSO:Chromium compounds of organic compounds containing more than one hydroxyl group are obtained by heating with alkaline suspensions of chromium hydroxide the parent compounds, for example, tanning agents, degradation products of cellulose, and waste products from sulphite cellulose manufacture; tannin and gallic acid are mentioned. The compounds may in part be separated from their aqueous solutions by evaporation or by salting out.
GB851621A 1921-03-18 1921-03-18 Manufacture of chromium compounds of azo-dyestuffs Expired GB186635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB851621A GB186635A (en) 1921-03-18 1921-03-18 Manufacture of chromium compounds of azo-dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB851621A GB186635A (en) 1921-03-18 1921-03-18 Manufacture of chromium compounds of azo-dyestuffs

Publications (1)

Publication Number Publication Date
GB186635A true GB186635A (en) 1922-09-18

Family

ID=9853931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB851621A Expired GB186635A (en) 1921-03-18 1921-03-18 Manufacture of chromium compounds of azo-dyestuffs

Country Status (1)

Country Link
GB (1) GB186635A (en)

Similar Documents

Publication Publication Date Title
GB186635A (en) Manufacture of chromium compounds of azo-dyestuffs
GB421935A (en) Manufacture of chromiferous azo-dyestuffs
GB414218A (en) Manufacture of chromiferous dyestuffs
GB457718A (en) Manufacture of azo-dyestuffs
GB364147A (en) Manufacture of azo-dyestuffs containing chromium
US2154348A (en) Mordant azo dyestuffs and a process for making same
GB296616A (en) Improvements in the manufacture and production of dyestuffs containing chromium
GB297687A (en) Manufacture of dyestuffs containing metal
GB497350A (en) Manufacture of complex metal compounds of polyazo-dyestuffs
GB384767A (en) Manufacture of azo-dyestuffs containing chromium
GB371449A (en) Manufacture of new chromiferous azo-dyestuffs
GB446820A (en) Process for the manufacture of dyestuffs containing chromium
GB428070A (en) Manufacture of mixed chromiferous azo-dyestuffs
GB457525A (en) Improvements in the manufacture and production of valuable azo dyestuffs
GB251266A (en) Manufacture of dyestuffs capable of being chromed
GB427922A (en) Manufacture of chromiferous dyestuffs
GB475966A (en) Dyeing of furs, pelts and hair and new dyestuffs therefor
GB349304A (en) Manufacture of metalliferous dyestuffs
GB460152A (en) A process for improving the properties of phthalocyanine dyestuffs
GB434139A (en) Manufacture of new chromiferous dyestuffs
GB456844A (en) Process for dyeing leather
GB448263A (en) Process for dyeing leather
GB295594A (en) Manufacture of dyestuffs containing chromium
GB241572A (en) Manufacture of dyestuffs
GB414872A (en) Process for dyeing furs