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HomeProduct name list2-NITROBENZENESULFONIC ACID

2-NITROBENZENESULFONIC ACID

  • CAS NO.:80-82-0
  • Empirical Formula: C6H5NO5S
  • Molecular Weight: 203.17
  • MDL number: MFCD00053617
  • EINECS: 201-311-6
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-10-21 09:28:55
2-NITROBENZENESULFONIC ACID Structural

What is 2-NITROBENZENESULFONIC ACID?

Chemical properties

Pale yellow crystals. Melting point 70 ℃.

The Uses of 2-NITROBENZENESULFONIC ACID

Used as an intermediates.

Production Methods

2-Chloronitrobenzene is reacted with sodium disulfide at 80 ℃ in aqueous ethanol to give 2,2' -dinitrodiphenyl disulfide, which is isolated and treated with chlorine in mineral acid medium in the presence of nitric acid to produce 2-nitrobenzenesulfonyl chloride by oxidative chlorination. This is hydrolyzed in dilute alkali, and the liquor of the resulting 2-Nitrobenzenesulfonic Acid is reduced with Fe – acid or H2 – catalyst to orthanilic acid [88-21-1], an important diazo component in reactive dyes for cotton.

Synthesis

2-Nitrobenzenesulfonic Acid is synthesized by reacting o-Nitrobenzenesulfonyl chloride with Concentrated ammonia solution in glacial acetic acid

Properties of 2-NITROBENZENESULFONIC ACID

Density  1.637
form  powder to crystal
pka -1.43±0.18(Predicted)
color  Light orange to Yellow to Green
CAS DataBase Reference 80-82-0(CAS DataBase Reference)

Safety information for 2-NITROBENZENESULFONIC ACID

Computed Descriptors for 2-NITROBENZENESULFONIC ACID

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