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2-NITROBENZENESULFONIC ACID

CAS No.
80-82-0
Chemical Name:
2-NITROBENZENESULFONIC ACID
Synonyms
Ivankasse Impurity 30;2-NITROBENZENESULFONIC ACID;O-NITROBENZENESULFONIC ACID;2-nitrobenzenesulphonic acid;2-NITROBENZENESULFONATE ACID;Benzenesulfonic acid, 2-nitro-;2-Nitrobenzenesulfonic Acid 2-NITROBENZENESULFONIC ACID HYDRATE;2-NitrobenzenesulfonicAcidHydrate>
CBNumber:
CB4170659
Molecular Formula:
C6H5NO5S
Molecular Weight:
203.17
MDL Number:
MFCD00053617
MOL File:
80-82-0.mol
Last updated:2023-10-21 09:28:55

2-NITROBENZENESULFONIC ACID Properties

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

SAFETY

Risk and Safety Statements

Risk Statements  34-41
Safety Statements  26-36/37/39
RIDADR  2305
HS Code  2904.99.4700
HazardClass  8
PackingGroup  II
NFPA 704
1
2 0

2-NITROBENZENESULFONIC ACID price More Price(5)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical N0139 2-Nitrobenzenesulfonic Acid Hydrate >98.0%(HPLC)(T) 80-82-0 5g $52 2023-06-20 Buy
TCI Chemical N0139 2-Nitrobenzenesulfonic Acid Hydrate >98.0%(HPLC)(T) 80-82-0 25g $155 2023-06-20 Buy
TRC N901335 2-Nitrobenzenesulfonic Acid Hydrate 80-82-0 250mg $45 2021-12-16 Buy
AK Scientific 5755AL 2-Nitrobenzenesulfonicacid 80-82-0 5g $117 2021-12-16 Buy
AHH MT-19709 2-Nitrobenzenesulfonateacid 98% 80-82-0 1000g $500 2021-12-16 Buy
Product number Packaging Price Buy
N0139 5g $52 Buy
N0139 25g $155 Buy
N901335 250mg $45 Buy
5755AL 5g $117 Buy
MT-19709 1000g $500 Buy

2-NITROBENZENESULFONIC ACID Chemical Properties,Uses,Production

Chemical Properties

Pale yellow crystals. Melting point 70 ℃.

Uses

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

2-NITROBENZENESULFONIC ACID Preparation Products And Raw materials

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- Ivankasse Impurity 30 80-82-0 C6H5NO5S Intermediates of Dyes and Pigments