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2-NITROBENZENESULFONIC ACID

Product Name
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
Formula Weight
203.17
MOL File
80-82-0.mol
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2-NITROBENZENESULFONIC ACID Property

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)
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Safety

Risk Statements 
34-41
Safety Statements 
26-36/37/39
RIDADR 
2305
HS Code 
2904.99.4700
HazardClass 
8
PackingGroup 
II
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

TCI Chemical
Product number
N0139
Product name
2-Nitrobenzenesulfonic Acid Hydrate
Purity
>98.0%(HPLC)(T)
Packaging
5g
Price
$52
Updated
2023/06/20
TCI Chemical
Product number
N0139
Product name
2-Nitrobenzenesulfonic Acid Hydrate
Purity
>98.0%(HPLC)(T)
Packaging
25g
Price
$155
Updated
2023/06/20
TRC
Product number
N901335
Product name
2-Nitrobenzenesulfonic Acid Hydrate
Packaging
250mg
Price
$45
Updated
2021/12/16
AK Scientific
Product number
5755AL
Product name
2-Nitrobenzenesulfonicacid
Packaging
5g
Price
$117
Updated
2021/12/16
AHH
Product number
MT-19709
Product name
2-Nitrobenzenesulfonateacid
Purity
98%
Packaging
1000g
Price
$500
Updated
2021/12/16
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2-NITROBENZENESULFONIC ACID Chemical Properties,Usage,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

Raw materials

Preparation Products

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2-NITROBENZENESULFONIC ACID Suppliers