2-Amino-4-chlorophenol-6-sulfonic acid Chemical Properties

Density 

1.790±0.06 g/cm3(Predicted)

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

form 

powder to crystal

pka

-1.53±0.50(Predicted)

color 

White to Almost white

CAS DataBase Reference

88-23-3(CAS DataBase Reference)

EPA Substance Registry System

2-Hydroxy-5-chlorometanilic acid (88-23-3)

Safety Information

Hazard Codes 

C

Risk Statements 

34

Safety Statements 

22-24/25-26-39

RIDADR 

2811

HS Code 

2922.29.8190

HazardClass 

6.1

PackingGroup 

III

MSDS

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2-Amino-4-chlorophenol-6-sulfonic acid Usage And Synthesis

Uses

The acid is an important intermediate for dyes. It is used mainly in the manufacture of Diamond Black P 2 B and of acid chrome blue dyes.

Production Methods

2-Amino-4-chlorophenol-6-sulfonic acid obtained from p-chlorophenol by sulfonation and nitration is reduced with iron and hydrochloric acid without being precipitated. After filtering from the iron sludge, the highly alkaline reduction liquor is concentrated by evaporation and decolorized with activated carbon. Upon acidification 3-amino-5-chloro-2-hydroxybenzenesulfonic acid precipitates. Yield 72 %, based on p-chlorophenol.

General Description

Off-white solid.

Air & Water Reactions

May be sensitive to prolonged exposure to air and/or light. Insoluble in water.

Reactivity Profile

2-Amino-4-chlorophenol-6-sulfonic acid may react with strong oxidizing or reducing agents and with mineral acids and bases

Fire Hazard

Flash point data are not available for 2-Amino-4-chlorophenol-6-sulfonic acid, but 2-Amino-4-chlorophenol-6-sulfonic acid is probably combustible.

2-Amino-4-chlorophenol-6-sulfonic acid(88-23-3)Related Product Information

• Glycine
• Sulfamic acid monosodium salt
• Phenol
• 3-Aminophenol
• 2-Amino-4-chlorophenol
• 4-Amino-benzenesulfonic acid monosodium salt
• Sulfanilic acid
• Sulfamic acid
• 4-Aminophenol
• Nickel bis(sulphamidate)
• Chloroacetic acid
• Difluorochloromethane
• ACID RED 183
• SULFOCHLOROPHENOL S
• Mordant Black 38
• Mordant Red 19
• LUMOGALLION
• 2-Amino-6-chlorophenol-4-sulfonic acid