4-Chloro-3-nitrobenzenesulfonic acid Chemical Properties

Melting point:

114-115 °C

Density 

1.747±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

pka

-1.44±0.50(Predicted)

CAS DataBase Reference

121-18-6(CAS DataBase Reference)

EPA Substance Registry System

Benzenesulfonic acid, 4-chloro-3-nitro- (121-18-6)

4-Chloro-3-nitrobenzenesulfonic acid Usage And Synthesis

Chemical Properties

White flaky crystal, easily soluble in water.

Uses

4-Chloro-3-nitrobenzenesulfonic acid can be used as dye intermediate.

Synthesis

It is derived from the nitration of p-chlorobenzenesulfonic acid. Add p-chlorobenzenesulfonic acid and 98% sulfuric acid into the reaction pot, cool to 20°C, add 67% nitric acid solution under stirring, react at 40°C for half an hour, salt out, filter, acidify, and filter to obtain the finished product. 4-Chloro-3-nitrobenzenesulfonic acid was synthesized by

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