Benzene sulphonic acid HP 25GM Go Back


: 98-11-3

Molecular Formula

: C6H5SO3H

Molecular Weight

: 158.18
Description: Off-white to white waxy crystalline solid.
Solubility: Soluble in water & alcohol.
Identification by IR: To comply the test
Melting point: 59°C-61°C
Chloride (Cl): Not more than 0.05%
Moisture: 1.0% max
Assay(HPLC): Min. 98.0% (Anhydrous basis)
Residue on ignition: 0.1% max
Organic impurities; Diphenyl sulfone: Not more than 2.0%
Organic impurities; Total impurities: Not more than 2.0%
Iron (Fe): 0.002% max
Arsenic (As): 0.15ppm max
Lead (Pb): 0.5ppm max
Mercury(Hg): 0.15ppm max
Cadmium(Cd): 0.2 ppm max
Total aerobic microbial count: 100 cfu/gm max
Total combined yeast and molds count: 10 cfu/gm max
E.coli: Absent/gm
Salmonella: Absent/10 gm
Staphylococcus aureus: Absent/gm
Pseud. aeruginosa: Absent/gm
Bile-tolerant gram negative bacteria: Absent/gm
Bacterial endotoxins: 2.5 EU/mg max
Cyclohexane as residual solvent: 2000 ppm max
Residual solvent (ICH): To Comply the test
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