ChemicalBook > CAS DataBase List > o-hydroxybenzenesulphonic acid
o-hydroxybenzenesulphonic acid
- Product Name
- o-hydroxybenzenesulphonic acid
- CAS No.
- 609-46-1
- Chemical Name
- o-hydroxybenzenesulphonic acid
- Synonyms
- Phenol-2-sulfonic acid;o-hydroxybenzenesulphonic acid;Calcium Dobesilate Impurity 13;Benzenesulfonic acid, 2-hydroxy-
- CBNumber
- CB7940017
- Molecular Formula
- C6H6O4S
- Formula Weight
- 174.17444
- MOL File
- 609-46-1.mol
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o-hydroxybenzenesulphonic acid Property
- Melting point:
- 145°C (rough estimate)
- Boiling point:
- 275.14°C (rough estimate)
- Density
- 1.384 (estimate)
- refractive index
- 1.5500 (estimate)
- form
- solid
- pka
- -0.60±0.15(Predicted)
- EPA Substance Registry System
- o-Phenolsulfonic acid (609-46-1)
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N-Bromosuccinimide Price
Labseeker
- Product number
- SC-86781
- Product name
- Benzenesulfonicacid,2-hydroxy-
- Purity
- 95
- Packaging
- 10g
- Price
- $2583
- Updated
- 2021/12/16
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o-hydroxybenzenesulphonic acid Chemical Properties,Usage,Production
Definition
ChEBI: An arenesulfonic acid that is phenol substituted by a sulfo group at C-2.
Production Methods
If phenol is sulfonated with an equal amount of 100% sulfuric acid under mild conditions, a mixture consisting of 2-hydroxy- and 4-hydroxybenzenesulfonic acid in a ratio of roughly 2:3 is obtained. The 2-hydroxybenzenesulfonic acid (o-hydroxybenzenesulphonic acid) can be isolated from this mixturevia the monobarium salt. The pure compound is obtained by diazotizing 2- aminobenzenesulfonic acid and boiling it under acid conditions.
o-hydroxybenzenesulphonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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