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BENZENESULFINIC ACID SODIUM SALT

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BENZENESULFINIC ACID SODIUM SALT Basic information

Product Name:
BENZENESULFINIC ACID SODIUM SALT
Synonyms:
  • 4-CHLOROBENZENESULPHINIC ACID SODIUM SALT
  • 4-CHLOROBENZENESULFINIC ACID SODIUM SALT HYDRATE
  • SODIUM 4-CHLOROBENZENE SULFINIC ACID
  • P-CHLOROBENZENESULFINIC ACID SODIUM SALT
  • Sodium benzene sulfonate,Sodium benzosulfonate
  • BENZENESULFINIC ACID NA SALT
  • Natriumbenzolsulfinat
  • Benzenesulfinic acid sodium salt
CAS:
873-55-2
MF:
C6H5NaO2S
MW:
164.16
EINECS:
212-842-8
Product Categories:
  • Pharmaceutical Intermediates
  • Industrial/Fine Chemicals
Mol File:
873-55-2.mol
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BENZENESULFINIC ACID SODIUM SALT Chemical Properties

Melting point:
>300 °C(lit.)
Boiling point:
83-84 °C
Density 
1.45[at 20℃]
storage temp. 
Inert atmosphere,Room Temperature
solubility 
Water
form 
Crystals or Crystalline Powder
color 
White
Water Solubility 
Soluble in water.
Sensitive 
Hygroscopic
BRN 
3598405
LogP
-3.54
CAS DataBase Reference
873-55-2(CAS DataBase Reference)
EPA Substance Registry System
Benzenesulfinic acid, sodium salt (873-55-2)
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Safety Information

Hazard Codes 
Xi,Xn
Risk Statements 
36/37/38-20/21/22
Safety Statements 
26-37/39-36-24/25
WGK Germany 
1
RTECS 
DA9135000
TSCA 
T
HS Code 
29309090

MSDS

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BENZENESULFINIC ACID SODIUM SALT Usage And Synthesis

Chemical Properties

white crystalline powder or crystals

Uses

It is used as a polymer adhesive enhancers, plasticizers for plasticized and modified of polyamide, epoxy resin, phenolic resin. It is designed for manufacturing of photography, pharmaceutical, electroplating industry, can be used as photo-reducing agent.

Uses

Benzenesulfinic acid sodium salt has been used in synthesis of sulfones by reaction of organic halides and sodium benzenesulfinate using higher alcohols or diols as solvents.It was also used in the synthesis of aryl sulfones via copper-catalyzed cross-coupling with boronic acids and vinyl sulfones via reaction with vicinal dibromides.

Uses

Benzenesulfinic Acid Sodium Salt is used reduce the adverse chemical interaction involved in the coupling of self/dual-cured composites to hydrated dentin.

General Description

Benzenesulfinic acid sodium salt when treated with alkynylselenonium salts yields (Z)-β-alkoxyvinylsulfones. It undergoes rhodium-catalyzed desulfinative coupling with aldehydes to yield ketones.

Purification Methods

Dissolve it in the minimum volume of O2 free H2O (prepared by bubbling N2 through for 2 hours) and adding O2 free EtOH (prepared as for H2O), set aside at 4o overnight under N2, filter, wash with EtOH, then Et2O and dry in vacuo. The Na salt is relatively stable to air oxidation, but is best kept under N2 in the dark. Also recrystallise it from EtOH and dry it at 120o for 4hours in a vacuum. [Kornblum & Wade J Org Chem 52 5301 1987, Beilstein 11 II 2, 11 IV 3.]

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