Basic information Safety Supplier Related

2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID

Basic information Safety Supplier Related

2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID Basic information

Product Name:
2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
Synonyms:
  • 4-HYDROXY-3-NITROSO-1-NAPHTHALENESULFONIC ACID
  • 2-NITROSO-1-NAPHTHOL-4-SULPHONIC ACID TETRAHYDRATE
  • 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
  • LABOTEST-BB LT00454247
  • 4-hydroxy-3-nitroso-1-naphthalenesulfonicaci
  • 4-hydroxy-3-nitrosonaphthalene-1-sulphonic acid
  • 4-hydroxy-3-nitrosonaphthalene-1-sulfonic acid
  • 4-Hydroxy-3-nitroso-1-naphthalenesulfonic acid tetrahydrate
CAS:
3682-32-4
MF:
C10H7NO5S
MW:
253.23
EINECS:
222-964-3
Mol File:
3682-32-4.mol
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2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID Chemical Properties

Melting point:
140-145 °C (dec.)
Density 
1.65±0.1 g/cm3(Predicted)
pka
0.11±0.40(Predicted)
CAS DataBase Reference
3682-32-4(CAS DataBase Reference)
EPA Substance Registry System
1-Naphthalenesulfonic acid, 4-hydroxy-3-nitroso- (3682-32-4)
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Safety Information

Hazard Codes 
Xn,Xi
Risk Statements 
20/21/22-33-36/37/38
Safety Statements 
36/37-37/39-26
WGK Germany 
3

MSDS

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2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID Usage And Synthesis

Purification Methods

Crystallise the acid from dilute HCl solution. The crystals are dried over CaCl2 in a vacuum desiccator. It has also been purified by dissolution in aqueous alkali and precipitation by addition of water. It is a reagent for cobalt. [Beilstein 11 H 331, 11 II 189, 11 III 621, 11 IV 668.]

2-NITROSO-1-NAPHTHOL-4-SULFONIC ACIDSupplier

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