GB190501818A - Improvements in the Manufacture and Production of Colouring Matters of the Anthracene Series. - Google Patents

Improvements in the Manufacture and Production of Colouring Matters of the Anthracene Series.

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Publication number
GB190501818A
GB190501818A GB190501818DA GB190501818A GB 190501818 A GB190501818 A GB 190501818A GB 190501818D A GB190501818D A GB 190501818DA GB 190501818 A GB190501818 A GB 190501818A
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GB
United Kingdom
Prior art keywords
hydrosulphites
dyes
yield
vats
manufacture
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
James Yate Johnson
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190501818A publication Critical patent/GB190501818A/en
Expired legal-status Critical Current

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Abstract

1818. Johnson, J. Y., [Badische Anilin & Soda Fabrik]. Jan. 30. Dyes, artificial.-The colouring-matters, obtained according to Specifications No. 16,538, A.D. 1904, and No. 853, A.D. 1905, by heating benzanthrone derivatives with alkali, are nitrated by suitable means, such as by nitric acid. The products are insoluble in water or dilute acids or alkalies, but dissolve in concentrated sulphuric acid or boiling nitrobenzene. With hydrosulphites, they yield vats dyeing vegetable fibre blue shades which turn green on washing and vary according to the degree of nitration. When reduced by sodium sulphide or the like, they yield other dyes which dissolve easily in nitrobenzene, forming green solutions, and also form vats with hydrosulphites.
GB190501818D 1905-01-30 1905-01-30 Improvements in the Manufacture and Production of Colouring Matters of the Anthracene Series. Expired GB190501818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190501818T 1905-01-30

Publications (1)

Publication Number Publication Date
GB190501818A true GB190501818A (en) 1905-08-10

Family

ID=32193381

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190501818D Expired GB190501818A (en) 1905-01-30 1905-01-30 Improvements in the Manufacture and Production of Colouring Matters of the Anthracene Series.

Country Status (1)

Country Link
GB (1) GB190501818A (en)

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