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2-NITROBENZENESULFONIC ACID

2-NITROBENZENESULFONIC ACID Basic information
Product Name:2-NITROBENZENESULFONIC ACID
Synonyms:O-NITROBENZENESULFONIC ACID;2-NITROBENZENESULFONATE ACID;2-NITROBENZENESULFONIC ACID;2-nitrobenzenesulphonic acid;2-NITROBENZENESULFONIC ACID HYDRATE;2-Nitrobenzenesulfonic Acid ;2-NitrobenzenesulfonicAcidHydrate>;Benzenesulfonic acid, 2-nitro-
CAS:80-82-0
MF:C6H5NO5S
MW:203.17
EINECS:201-311-6
Product Categories:Intermediates of Dyes and Pigments
Mol File:80-82-0.mol
2-NITROBENZENESULFONIC ACID Structure
2-NITROBENZENESULFONIC ACID Chemical Properties
density 1.637
pka-1.43±0.18(Predicted)
form powder to crystal
color Light orange to Yellow to Green
CAS DataBase Reference80-82-0(CAS DataBase Reference)
Safety Information
Risk Statements 34-41
Safety Statements 26-36/37/39
RIDADR 2305
HS Code 2904.99.4700
HazardClass 8
PackingGroup II
MSDS Information
2-NITROBENZENESULFONIC ACID Usage And Synthesis
Chemical PropertiesPale yellow crystals. Melting point 70 ℃.
UsesUsed as an intermediates.
Production Methods2-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.
Synthesis2-Nitrobenzenesulfonic Acid is synthesized by reacting o-Nitrobenzenesulfonyl chloride with Concentrated ammonia solution in glacial acetic acid
2-NITROBENZENESULFONIC ACID Preparation Products And Raw materials
Raw materials2-Nitrobenzenesulfonyl chloride
Preparation Products2-Nitro-N-hydroxyethyl aniline
Tag:2-NITROBENZENESULFONIC ACID(80-82-0) Related Product Information
sodium 3-[(1,5-dihydroxy-2-naphthyl)azo]-4-hydroxy-5-nitrobenzenesulphonate 2-NITROBENZENESULFONIC ACID 2,4,6-TRINITROBENZENESULFONIC ACID 2,4-DINITROBENZENESULFONIC ACID 2,4-DINITROBENZENESULFONIC ACID SODIUM SALT XTT sodium salt (R)-(-)-Glycidyl nosylate Acid Brown 354 potassium 4-nitrobenzenesulfonate H2O (S)-(+)-Glycidyl nosylate 3-Fluoro-4-nitrobenzenesulfonic acid Acid Yellow 199 potassium 2-[[4-[[3-methyl-4-[(phenylsulphonyl)oxy]phenyl]azo]phenyl]amino]-5-nitrobenzenesulphonate Pigment Yellow 168 Pigment Yellow 62 3-Fluoro-6-nitrobenzenesulfonic acid (S)-(+)-Glycidyl-4-nitrobenzenesulfonate sodium 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-5-nitrobenzenesulphonate