GB189812085A - Improvements in the Manufacture of Intermediate Products and Colouring Matters therefrom. - Google Patents
Improvements in the Manufacture of Intermediate Products and Colouring Matters therefrom.Info
- Publication number
- GB189812085A GB189812085A GB189812085DA GB189812085A GB 189812085 A GB189812085 A GB 189812085A GB 189812085D A GB189812085D A GB 189812085DA GB 189812085 A GB189812085 A GB 189812085A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acids
- acid
- sulphonic
- produced
- amidonaphthol
- 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
- Detergent Compositions (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
12,085. Read Holliday & Sons, Turner, J., and Dean, H. May 27. Chlornaphtol, amidonaphthol, and dioxynaphthalene sulphonic acids are produced by the following processes :-(1) Chlornaphthol mono- and disulphonic acids are obtained from the chlornaphthylamine sulphonic acids, viz. :-[NH2 : SO3H: Cl. # 1 : 8 : 5, 1 : 5 : 8, 1 : 8 : 4, and 1 : 4 : 8], which are produced by the processes described in Specifications No. 13,999, A.D. 1897, and No. 11,736, A.D. 1898, and from chlornaphthylamine disulphonic acids, viz.:-NH2: Cl: SO3H: SO3H =1 : 8 : 3 : 6, and 1 : 8 : 4 : 6, by diazotizing these acids and boiling the diazo compounds with dilute sulphuric acid. (2) Amidonaphthol mono-ard di-sulphonic acids are produced by heating the foregoing chlornaphthylamine sulphonic acids with caustic alkalies under pressure at 200‹ to 250‹ C. for several hours, and then acidifying the mixture. (3) Dioxynaphthalene mono- and di-sulphonic acids are produced by similarly treating the foregoing chlornaphthol mono- or di-sulphonic acids with caustic alkalies. Dioxy naphthalene disulphonic acids 1 : 8 : 3 : 6 and 1 : 8 : 4 : 6 are similarly produced by heating chlornaphthalene trisulphonic acids with caustic alkalies. Dyes, artificial.-Azo dyes are produced from the foregoing compounds as follows :-(1) The chlornaphthol sulphonic acids are combined with diazo compounds, such as diazotized naphthionic acid, or with tetrazo compounds such as that of tolidine or dianisidine. Mixed azo dyes result in the latter case when another component such as 1 : 8 : 5 amidonaphthol sulphonic acid is also used. (2) A diazotized amine, amidosulphonic acid, or a nitro derivative thereof, is combined with one molecular proportion of amidonaphthol sulphonic acid 1 : 8 : 4 or 1 :8 : 5, or amidonaphthol disulphonic acid 1 : 8 : 3 : 6 in acid solution and subsequently the product is combined with one molecular proportion of a diazotized chlor-amido sulphonic acid in alkaline solution. For example, the diazo compounds of amidoazobenzene, chloraniline sulphonic acid, and p-nitraniline are used in these combinations.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB189812085T | 1898-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB189812085A true GB189812085A (en) | 1899-04-22 |
Family
ID=32416076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB189812085D Expired GB189812085A (en) | 1898-05-27 | 1898-05-27 | Improvements in the Manufacture of Intermediate Products and Colouring Matters therefrom. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB189812085A (en) |
-
1898
- 1898-05-27 GB GB189812085D patent/GB189812085A/en not_active Expired
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