1-hydroxynaphthalene-2-sulphonic acid
- CAS No.
- 567-18-0
- Chemical Name:
- 1-hydroxynaphthalene-2-sulphonic acid
- Synonyms
- 1-Hydroxy;1-NAPHTHOL-2-SULPHONICACID;1-Hydroxynaphthalene-2-sulfonic acid;1-Hydroxy-2-naphthalenesulfonic acid;1-hydroxynaphthalene-2-sulphonic acid;2-Naphthalenesulfonic acid, 1-hydroxy-
- CBNumber:
- CB8905572
- Molecular Formula:
- C10H8O4S
- Molecular Weight:
- 224.23
- MDL Number:
- MOL File:
- 567-18-0.mol
| Melting point | >249.85°C |
|---|---|
| Boiling point | 335.63°C (rough estimate) |
| Density | 1.4643 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| pka | 0.10±0.40(Predicted) |
| FDA UNII | KDF25YAO2H |
| EPA Substance Registry System | 2-Naphthalenesulfonic acid, 1-hydroxy- (567-18-0) |
1-hydroxynaphthalene-2-sulphonic acid Chemical Properties,Uses,Production
Chemical Properties
1-Hydroxynaphthalene-2-sulfonic acid [567-18-0]. Baum’s acid, C10H8O4S, Mr 224.23, is sparingly soluble in water and is precipitated from aqueous solution by hydrochloric acid. Coupling with diazo compounds and nitrosation both take place in the 4-position. Sulfonation gives 1-naphthol-2,4-disulfonic acid and nitration gives 2,4-dinitro-1-naphthol.
Preparation
The reaction of 1-naphthol with oleum in the cold yields a mixture of the 2- and 4- sulfonic acids; the former may be separated from the aqueous quenched reaction mixture by salting out the potassium salt after removing unreacted 1-naphthol.
1-hydroxynaphthalene-2-sulphonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
1-hydroxynaphthalene-2-sulphonic acid Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 029-029-81120477 17792793610 | 1033@dideu.com | China | 9811 | 58 |
| Supplier | Advantage |
|---|---|
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 58 |