ChemicalBook > CAS DataBase List > 4,5-dihydroxynaphthalene-1-sulphonic acid
4,5-dihydroxynaphthalene-1-sulphonic acid
- Product Name
- 4,5-dihydroxynaphthalene-1-sulphonic acid
- CAS No.
- 83-65-8
- Chemical Name
- 4,5-dihydroxynaphthalene-1-sulphonic acid
- Synonyms
- 4,5dihydroxynaphthalene-1-sulfonic acid;4,5-Dihydroxy-1-naphthalenesulfonic acid;4,5-dihydroxynaphthalene-1-sulphonic acid;1-Naphthalenesulfonic acid, 4,5-dihydroxy-
- CBNumber
- CB4892298
- Molecular Formula
- C10H8O5S
- Formula Weight
- 240.23
- MOL File
- 83-65-8.mol
More
Less
4,5-dihydroxynaphthalene-1-sulphonic acid Property
- Density
- 1.677±0.06 g/cm3(Predicted)
- pka
- 0.82±0.40(Predicted)
- EPA Substance Registry System
- 4,5-Dihydroxy-1-naphthalenesulfonic acid (83-65-8)
More
Less
4,5-dihydroxynaphthalene-1-sulphonic acid Chemical Properties,Usage,Production
Description
4,5-Dihydroxynaphthalene-1-sulfonic acid [83-65-8]. (1,8-dihydroxynaphthalene-4- sulfonic acid), dioxy Chicago acid, dioxy S acid, C10H8O5S, Mr 240.2, is sparingly soluble in water, but the sodium salt is readily soluble. Heating with dilute sulfuric acid at 150℃ gives 1,8-dihydroxynaphthalene.
Production Methods
1-Hydroxynaphthalene-4,8- disulfonic acid is heated with 82 % caustic soda liquor for 3 h at 235℃. The melt is poured into excess hydrochloric acid and sulfur dioxide is expelled. After cooling, the product is filtered off and washed with brine; the yield is 83 %.
4,5-dihydroxynaphthalene-1-sulphonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
More
Less
4,5-dihydroxynaphthalene-1-sulphonic acid Suppliers
- Tel
- --
- Fax
- --
- Country
- United Kingdom
- ProdList
- 6309
- Advantage
- 46