GB190328506A - Improved Manufacture of Oxyanthraquinone Derivatives. - Google Patents
Improved Manufacture of Oxyanthraquinone Derivatives.Info
- Publication number
- GB190328506A GB190328506A GB190328506DA GB190328506A GB 190328506 A GB190328506 A GB 190328506A GB 190328506D A GB190328506D A GB 190328506DA GB 190328506 A GB190328506 A GB 190328506A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- produced
- oxyanthraquinone
- derivatives
- dioxyanthraquinone
- 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
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
28,506. Iljinskij, M., and Wedekind & Co., R. Dec. 28. Chloroxyanthraquinones are produced by treating the non-dyeing #-, or a #-oxyanthraquinones in alkaline solution with hypochlorites, or other source of nascent chlorine. In strongly-alkaline solutions, monochlor derivatives are chiefly produced. The new bodies are suitable for use in the manufacture of dyes. In an example, anthraflavic acid is dissolved in boiling soda lye and is boiled with sodium hypochlorite, produced by decomposing chloride of lime by carbonate of soda containing chlorine. Sodium sulphite is added to destroy excess of hypochlorite, and a clear yellow precipitate of monochloranthraflavic acid is obtained by adding sulphuric acid. In similar examples, in which soda lye is replaced by sodium carbonate, di- and trichlor derivatives are obtained. Dichloranthraflavic acid, monochlor- 1 :7- dioxyanthraquinone and monochlor-#- oxyanthraquinone are produced similarly from isoanthraflavic acid, 1 : 7-dioxyanthraquinone, and #-oxyanthraquinone. The production of 1:7-dioxyanthraquinone is described in Specification No. 10,242, A.D. 1903.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190328506T | 1903-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190328506A true GB190328506A (en) | 1904-12-28 |
Family
ID=32254810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190328506D Expired GB190328506A (en) | 1903-12-28 | 1903-12-28 | Improved Manufacture of Oxyanthraquinone Derivatives. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190328506A (en) |
-
1903
- 1903-12-28 GB GB190328506D patent/GB190328506A/en not_active Expired
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