P-toluenesulfonic Acid

P-toluenesulfonic acid

English name: P-toluenesulfonic acid

English alias: Methylbenzenesulfonic acid; Toluenesulfonic acid; Tosic acid; P-Toluene Sulfonic Acid; P-Toluene Sulphonic Acid; para toluene sulfonic acid; para toluene sulphonic acid; PARATOLUENE SULPHONIC ACID; PTS ACID; 4-methylbenzenesulfonic acid; ParaTolune Sulfonic Acid; p-Toluenesulfonic acid(Anhydrous); P-Toluene Sulfonic acid（short for PTSA）

Molecular formula: C₇H₈O₃S   p-CH₃C₆H₄SO₃H  or  TsOH

Molecular weight: 172.202

CAS No.: 104-15-4

EINECS: 203-180-0

Molecular weight: 172.202

Relative density (water=1): 1.24 g/cm³

Melting point: 106-107℃

UN NO.:2585

Appearance: White acicular or powdery crystal

Solubility (mg/L): Soluble in water, alcohols and other polar solvents

Uses: Widely used in the synthesis of pharmaceuticals, pesticides, stabilizers for polymerization reactions and catalysts for organic synthesis (esters, etc.). It is used as intermediate of medicine, coating and resin curing agent, and also used as intermediate of electroplating.

Precautions for storage: The storage room is ventilated, low temperature, dry, and stored separately from alkali.

PIC: Emily Zhang
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