Benzenesulfonic acid

Deliquescent colorless plates

Fixed

1.32 g · cm -3 ( 47 ° C)

• 44 ° C. ( hydrate)
• 51 ° C ( anhydrous)

190 ° C.

0.7

Soluble in water and ethanol, and insoluble in nonpolar solvents

Risk

1230 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Benzenesulfonic acid is a chemical compound from the group of sulfonic acids. Its salts are called benzenesulphonates pharmaceutically also besilates.

Production and representation

Benzenesulfonic acid can be obtained by sulfonation of benzene with fuming sulfuric acid (sulfuric acid with varying amounts of sulfur trioxide ):

Use

Benzenesulfonic acid is used as a catalyst in chemical reactions, and as an intermediate in the production of resorcinol ( m- benzenedisulfonic acid on ) and phenol ( by alkali fusion ).

Besilates

A besilate is an organic salt of benzenesulfonic acid. One example is the drug amlodipine besylate, derived from the nitrogenous base amlodipine.

Derivatives

Derivatives of benzene, for example, the Anisolsulfonsäuren and toluenesulfonic acids.