GB190701593A - Manufacture of Sulphurised Dyestuffs. - Google Patents

Manufacture of Sulphurised Dyestuffs.

Info

Publication number
GB190701593A
GB190701593A GB190701593DA GB190701593A GB 190701593 A GB190701593 A GB 190701593A GB 190701593D A GB190701593D A GB 190701593DA GB 190701593 A GB190701593 A GB 190701593A
Authority
GB
United Kingdom
Prior art keywords
water
thiosulphate
dye
alpha
substituted
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
Inventor
Oliver Imray
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190701593A publication Critical patent/GB190701593A/en
Expired legal-status Critical Current

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  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

1593. Imray, O., [Farbwerke vorm. Meister, Lucius, & Br³ning]. Jan. 21. Dyes, artificial.-Sulphurized dye-stuffs are obtained by heating unsubstituted or substituted alpha-oxythionaphthenes or alpha-oxythionaphthene carboxylic acids with soluble thiosulphates in presence of water, to a temperature above 100‹C. According to an example, the parent substance is heated with crystallized sodium thiosulphate to between 100-130‹ C. The product is extracted with water and the dye-stuff separated by filtration. An alkaline earth thiosulphate may be substituted for the alkali thiosulphate, and if no water of crystallization is present, some water may be added to the mass.
GB190701593D 1907-01-21 1907-01-21 Manufacture of Sulphurised Dyestuffs. Expired GB190701593A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190701593T 1907-01-21

Publications (1)

Publication Number Publication Date
GB190701593A true GB190701593A (en) 1907-08-08

Family

ID=32258898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190701593D Expired GB190701593A (en) 1907-01-21 1907-01-21 Manufacture of Sulphurised Dyestuffs.

Country Status (1)

Country Link
GB (1) GB190701593A (en)

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