GB189720649A - The Manufacture or Production of Coloring Matters derived from Anthraquinone. - Google Patents

The Manufacture or Production of Coloring Matters derived from Anthraquinone.

Info

Publication number
GB189720649A
GB189720649A GB189720649DA GB189720649A GB 189720649 A GB189720649 A GB 189720649A GB 189720649D A GB189720649D A GB 189720649DA GB 189720649 A GB189720649 A GB 189720649A
Authority
GB
United Kingdom
Prior art keywords
anthraquinone
manufacture
production
reducing
coloring matters
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
Henry Edward Newton
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 GB189720649A publication Critical patent/GB189720649A/en
Expired legal-status Critical Current

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  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

20,649. Newton, H. E., [Farbenfabriken vorm. F. Bayer & Co.]. Sept. 8. Dyes, artificial.-Disulphonic acids of p-dihydroxylamine-anthrarufin and p-dihydroxylaminechrysazin, which dye unmordanted wool blue shades in an acid bath, and chrome-mordanted wool bluishgreen shades, are produced by reducing the disulphonic acids of p-dinitroanthrarufin and p-dinitrochrysazin with the calculated quantity of a reducing-agent, such as stannous chloride and hydrochloric acid. The new products are precipitated as ammonium salts by addition of excess of ammonium chloride or the like. Further reduction converts them into the corresponding diamido compounds.
GB189720649D 1897-09-08 1897-09-08 The Manufacture or Production of Coloring Matters derived from Anthraquinone. Expired GB189720649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189720649T 1897-09-08

Publications (1)

Publication Number Publication Date
GB189720649A true GB189720649A (en) 1898-07-30

Family

ID=32136435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189720649D Expired GB189720649A (en) 1897-09-08 1897-09-08 The Manufacture or Production of Coloring Matters derived from Anthraquinone.

Country Status (1)

Country Link
GB (1) GB189720649A (en)

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