ChemicalBook >> CAS DataBase List >>2-Naphthol-5,7-disulfonic acid

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
Molecular Weight:
304.3
MDL Number:
MFCD29918914
MOL File:
575-05-3.mol
Last updated:2023-11-01 14:59:39

2-Naphthol-5,7-disulfonic acid Properties

Density 1.816±0.06 g/cm3(Predicted)
pka -0.49±0.40(Predicted)

2-Naphthol-5,7-disulfonic acid Chemical Properties,Uses,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

Global( 3)Suppliers
Supplier Tel Email Country ProdList Advantage
Hubei Jusheng Technology Co.,Ltd.
18871490254 linda@hubeijusheng.com CHINA 28180 58
Supplier Advantage
Hubei Jusheng Technology Co.,Ltd.
58
2-Naphthol-5,7-disulfonic acid 6-hydroxynaphthalene-1,3-disulfonic acid 1,3-Naphthalenedisulfonic acid, 6-hydroxy- 575-05-3