ChemicalBook > CAS DataBase List > BENZENESULFINIC ACID
BENZENESULFINIC ACID
- Product Name
- BENZENESULFINIC ACID
- CAS No.
- 618-41-7
- Chemical Name
- BENZENESULFINIC ACID
- Synonyms
- Benzolsulfinsure;benzenesulfinicaci;Phenylsulfinic acid;benzenesulphinicacid;BENZENESULFINIC ACID;SODIUMBENZENESULPHINICACID
- CBNumber
- CB2111159
- Molecular Formula
- C6H6O2S
- Formula Weight
- 142.18
- MOL File
- 618-41-7.mol
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BENZENESULFINIC ACID Property
- Melting point:
- 84°C
- Boiling point:
- 111.5°C (estimate)
- Density
- 1.365 (estimate)
- refractive index
- 1.5300 (estimate)
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- pka
- 1.3(at 20℃)
- form
- solid
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N-Bromosuccinimide Price
American Custom Chemicals Corporation
- Product number
- CHM0312665
- Product name
- BENZENESULFINIC ACID
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $496.16
- Updated
- 2021/12/16
Ambeed
- Product number
- A161190
- Product name
- Benzenesulfinicacid
- Purity
- 95%
- Packaging
- 10g
- Price
- $766
- Updated
- 2021/12/16
Ambeed
- Product number
- A161190
- Product name
- Benzenesulfinicacid
- Purity
- 95%
- Packaging
- 25g
- Price
- $1307
- Updated
- 2021/12/16
Alichem
- Product number
- 618417
- Product name
- Benzenesulfinicacid
- Packaging
- 25g
- Price
- $1683.67
- Updated
- 2021/12/16
Ambeed
- Product number
- A161190
- Product name
- Benzenesulfinicacid
- Purity
- 95%
- Packaging
- 100g
- Price
- $4055
- Updated
- 2021/12/16
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BENZENESULFINIC ACID Chemical Properties,Usage,Production
Definition
ChEBI: Benzenesulfinic acid is an organosulfinic acid. It is a conjugate acid of a benzenesulfinate.
Synthesis Reference(s)
Chemical and Pharmaceutical Bulletin, 35, p. 1770, 1987 DOI: 10.1248/cpb.35.1770
Purification Methods
The acid is purified by dissolving the Na salt in H2O, acidifying to Congo Red paper with HCl and adding a concentrated solution of FeCl3 whereby Fe sulfinate precipitates. Collect the salt, wash it with a little H2O, drain, suspend it in H2O and add a slight excess of 1.5M aqueous NaOH. The Fe(OH)3 precipitates, it is filtered off, the sulfinic acid in the aqueous solution is extracted with Et2O, the extract is dried (Na2SO4) and evaporated to give colourless crystals of benzenesulfinic acid m 84o which are stored under N2 in the dark, as it slowly oxidises in air to the sulfonic acid. [Beilstein 11 H 2, 11 I 3, 11 II 3, 11 III 3, 11 IV 3.]
BENZENESULFINIC ACID Preparation Products And Raw materials
Raw materials
Preparation Products
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