6,7-Dihydroxynaphthalene-2-sulfonic acid

CAS No.: 92-27-3

Chemical Name:: 6,7-Dihydroxynaphthalene-2-sulfonic acid

Synonyms: 6,7-DIHYDROXYNAPHTHALENE-2-SULFONIC ACID;6,7-dihydroxynaphthalene-2-sulphonic acid;2-Naphthalenesulfonic acid, 6,7-dihydroxy-

CBNumber:: CB8932585

Molecular Formula:: C10H8O5S

Molecular Weight:: 240.23

MOL File:: 92-27-3.mol

Modify Date:: 2023/11/2 14:21:09

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6,7-Dihydroxynaphthalene-2-sulfonic acid Properties

Density	1.677±0.06 g/cm3(Predicted)
pka	0.35±0.40(Predicted)
EPA Substance Registry System	2-Naphthalenesulfonic acid, 6,7-dihydroxy- (92-27-3)

6,7-Dihydroxynaphthalene-2-sulfonic acid Chemical Properties,Uses,Production

Chemical Properties

6,7-Dihydroxynaphthalene-2-sulfonic acid [92-27-3]. (2,3-dihydroxynaphthalene-6-sulfonic acid), dioxy R acid, C10H8O5S, Mr 240.2, is readily soluble in water. The sodium salt is sparingly soluble in cold water but readily soluble in hot water. Heating with dilute sulfuric acid at 190 C gives 2,3-dihydroxynaphthalene.

Production Methods

2-Hydroxynaphthalene-3,6- disulfonic acid is heated with 70 % caustic soda liquor for 4 h at 270℃, after which the reaction mixture is diluted with water and poured into excess hydrochloric acid. The precipitated product is filtered off and washed with brine; the yield is 90 %.

6,7-Dihydroxynaphthalene-2-sulfonic acid Preparation Products And Raw materials

Raw materials

3-Hydroxynaphthalene-2,7-disulphonic acid

Preparation Products

6,7-Dihydroxynaphthalene-2-sulfonic acid Suppliers

Global( 6)Suppliers

Supplier	Tel	Country	ProdList	Advantage	Inquiry
Yick-Vic Chemicals & Pharmaceuticals (HK) Ltd	(852)2541 2772	China	6214	58	Inquiry
Eurolabs Limited	44 1625 850089	United Kingdom	6323	46	Inquiry
Sun-E Digital Advanced Co., Ltd.	86-021-64230762 886-2-27939507	China	9	30	Inquiry
Alfa Chemistry	+1 (201) 478-8534	United States	6824	0	Inquiry
Carbosynth	+86 512 6260 5585	United Kingdom	6018	58	Inquiry
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd	15229059051	China	9976	58	Inquiry

Supplier	Advantage
Yick-Vic Chemicals & Pharmaceuticals (HK) Ltd	58
Eurolabs Limited	46
Sun-E Digital Advanced Co., Ltd.	30
Alfa Chemistry	0
Carbosynth	58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd	58

92-27-3(6,7-Dihydroxynaphthalene-2-sulfonic acid)Related Search:

Sodium xylenesulfonate Sodium 2-naphthalenesulfonate 2,7-Dihydroxynaphthalene 1,7-Dihydroxynaphthalene 1-Naphthalenesulfonic acid

6,7-Dihydroxynaphthalene-2-sulfonic acid SULFONIC ACID

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6,7-dihydroxynaphthalene-2-sulphonic acid 6,7-DIHYDROXYNAPHTHALENE-2-SULFONIC ACID 2-Naphthalenesulfonic acid, 6,7-dihydroxy- 92-27-3 Intermediates of Dyes and Pigments