GB220216A - Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries - Google Patents

Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries

Info

Publication number
GB220216A
GB220216A GB3072123A GB3072123A GB220216A GB 220216 A GB220216 A GB 220216A GB 3072123 A GB3072123 A GB 3072123A GB 3072123 A GB3072123 A GB 3072123A GB 220216 A GB220216 A GB 220216A
Authority
GB
United Kingdom
Prior art keywords
glyoxal
anthraquinoneseries
manufacture
production
aminoanthraquinone
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
GB3072123A
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 SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Priority to GB3072123A priority Critical patent/GB220216A/en
Publication of GB220216A publication Critical patent/GB220216A/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Anthraquinonethiazoles are obtained by condensing 1-mercapto-2-aminoanthraquinone, or a derivative thereof, or the corresponding disulphide, with glyoxal; instead of glyoxal its bisulphite compound or sulphate may be used. According to an example, 1-mercato-2-aminoanthraquinone and glyoxal sulphate are heated in concentrated sulphuric acid solution; the product may be purified by boiling with hypochlorite solution or by re-vatting, or by fractional precipitation by diluting the reaction mixture with water or dilute sulphuric acid; it dyes cotton greenish-yellow shades. Specification 21027/13 is referred to.
GB3072123A 1923-12-06 1923-12-06 Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries Expired GB220216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3072123A GB220216A (en) 1923-12-06 1923-12-06 Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3072123A GB220216A (en) 1923-12-06 1923-12-06 Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries

Publications (1)

Publication Number Publication Date
GB220216A true GB220216A (en) 1924-08-14

Family

ID=10312096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3072123A Expired GB220216A (en) 1923-12-06 1923-12-06 Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries

Country Status (1)

Country Link
GB (1) GB220216A (en)

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