ChemicalBook > CAS DataBase List > 2-Naphthol-5,7-disulfonic acid
2-Naphthol-5,7-disulfonic acid
- Product Name
- 2-Naphthol-5,7-disulfonic acid
- CAS No.
- 575-05-3
- Chemical Name
- 2-Naphthol-5,7-disulfonic acid
- Synonyms
- 2-Naphthol-5,7-disulfonic acid;6-hydroxynaphthalene-1,3-disulfonic acid;1,3-Naphthalenedisulfonic acid, 6-hydroxy-
- CBNumber
- CB5947188
- Molecular Formula
- C10H8O7S2
- Formula Weight
- 304.3
- MOL File
- 575-05-3.mol
More
Less
2-Naphthol-5,7-disulfonic acid Property
- Density
- 1.816±0.06 g/cm3(Predicted)
- pka
- -0.49±0.40(Predicted)
More
Less
2-Naphthol-5,7-disulfonic acid Chemical Properties,Usage,Production
Chemical Properties
2-Hydroxynaphthalene-5,7-disulfonic acid [575-05-3]. (6-hydroxynaphthalene-1,3- disulfonic acid), C10H8O7S2, Mr 304.3, and its alkali-metal salts are readily soluble in water. Diazo coupling takes place in the 1-position.
Uses
The acid has some use as an azo coupling component and as an intermediate in the production of 2,5-dihydroxynaphthalene-7- sulfonic acid.
Production Methods
2-Aminonaphthalene-5,7-disulfonic acid is heated with 5 % sulfuric acid for 15 h at 185℃ under pressure. After liming out and removal of ammonia and calcium ions, the product is obtained as a solution of the sodium salt for further use.
2-Naphthol-5,7-disulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
More
Less
2-Naphthol-5,7-disulfonic acid Suppliers
- Tel
- --
- Fax
- --
- Country
- United Kingdom
- ProdList
- 6309
- Advantage
- 46