GB190023902A - Manufacture of Colouring Matters of the Thiazine Series and of Intermediate Products therefor. - Google Patents
Manufacture of Colouring Matters of the Thiazine Series and of Intermediate Products therefor.Info
- Publication number
- GB190023902A GB190023902A GB190023902DA GB190023902A GB 190023902 A GB190023902 A GB 190023902A GB 190023902D A GB190023902D A GB 190023902DA GB 190023902 A GB190023902 A GB 190023902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloride
- phenazthionium
- thiodiphenylamine
- oxidizing
- produced
- 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
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
23,902. Kehrmann, F. Dec. 31. Phenazthionium compounds of the general formula in which R represents an acid radicle, are produced by oxidizing thiodiphenylamine with chlorine, bromine, ferric chloride, lead peroxide, chromic acid, bichromates, nitrous acid, persulphates, and the like. An example is given in which phenazthionium bromide is produced by acting upon thiodiphenylamine in alcoholic solution with bromine at a temperature not exceeding 15‹-20‹ C. The product separates as dark brownish-green crystals with a slight metallic lustre. When ferric chloride is used as oxidizing-agent, phenazthionium chloride is obtained in the form of its double compound with ferrous chloride. Dyes, artificial, of the thiazine series are produced by a conjoint oxidation of the foregoing phenazthionium compounds with one or two molecular proportions of an aromatic amine. These products are represented by the following formulµ :- The production of the phenazthionium compounds and of the thiazine dye-stuffs may be combined in one operation. Examples are given in which (1) di-anilinophenazthionium chloride is obtained from aniline and the double compound of phenazthionium chloride and ferrous chloride by passing air through a boiling mixture of them ; (2) mono- and di-anilinophenazthionium chloride are obtained by oxidizing aniline and thiodiphenylamine in suitable proportions in alcoholic solution by means of ferric chloride; (3) sulphanilinophenazthionium anhydride is similarly obtained from sulphanilic acid and thiodiphenylamine ; (4) p-acetamidoanilinophenazthionium chloride is obtained from thiodiphenylamine and acetyl-p-phenylenediamine ; and (5) mono-p-acetamidodianilinophenazthionium chloride is produced by oxidizing the preceding product with aniline by means of a current of air. The dyes obtained by these processes dye tannin-mordanted cotton greenish-blue, dark green, and indigo-blue shades.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190023902T | 1900-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190023902A true GB190023902A (en) | 1901-11-02 |
Family
ID=32150975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190023902D Expired GB190023902A (en) | 1900-12-31 | 1900-12-31 | Manufacture of Colouring Matters of the Thiazine Series and of Intermediate Products therefor. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190023902A (en) |
-
1900
- 1900-12-31 GB GB190023902D patent/GB190023902A/en not_active Expired
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