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100-03-8

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Basic Information
CAS No.: 100-03-8
Name: p-chlorobenzenesulphinic acid
Article Data: 53
Molecular Structure:
Molecular Structure of 100-03-8 (p-chlorobenzenesulphinic acid)
Formula: C6H5ClO2S
Molecular Weight: 176.624
Synonyms: Benzenesulfinicacid, p-chloro- (6CI,7CI,8CI);4-Chlorobenzenesulfinic acid;p-Chlorobenzenesulfinic acid;
EINECS: 202-812-2
Density: 1.61 g/cm3
Melting Point: 99 °C
Boiling Point: 363.9 °C at 760 mmHg
Flash Point: 173.9 °C
Appearance: solid
PSA: 56.51000
LogP: 2.78630
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Chemistry

IUPAC Name: 4-Chlorobenzenesulfinic acid
CAS: 100-03-8
Formula: C6H5ClO2S
The Molecular Weight of 4-Chlorobenzenesulfinic acid (CAS NO.100-03-8): 176.6207
Molecular Structure of 4-Chlorobenzenesulfinic acid (CAS NO.100-03-8):

Appearance: solid
Density: 1.61 g/cm3 
Flash Point: 173.9 °C
Boiling Point: 363.9 °C at 760 mmHg 
Index of Refraction: 1.694 
Molar Refractivity: 41.98 cm3 
Molar Volume: 109.2 cm3 
Polarizability: 16.64×10-24cm3 
Surface Tension: 83.9 dyne/cm   
Enthalpy of Vaporization: 64.36 kJ/mol 
Vapour Pressure: 6.22E-06 mmHg at 25°C 
Water Solubility: 1.598e+005 (mg/L) at 25°C 

Toxicity Data With Reference

1.    

orl-rat LD50:>500 mg/kg

     JAFCAU    Journal of Agricultural and Food Chemistry. 25 (1977),501.
2.    

ivn-mus LD50:56 mg/kg

     CSLNX*    U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#04978 .

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Poison by intravenous route. Moderately toxic by ingestion. When heated to decomposition it emits toxic vapors of SOx and Cl−.

Specification

  The chemical synonyms of 4-Chlorobenzenesulfinic acid (CAS NO.100-03-8) are p-Chlorobenzenesulphinic acid ; 4-Chlorobenzenesulfinicacid ; P-Chloro benzene sulfinic acid .