p-Toluenesulfonic Acid, Monohydrate, ACS

RT

190, 22

White cystals or white to pink crystalline powder

p-Toluenesulfonic acid monohydrate, an oxonium salt, is an inexpensive and easy to handle organic catalyst used in organic synthesis. The study of its crystalline structure shows that it is monoclinic with P21/c space group Its solubility in aqueous sulfuric acid solutions has been studied.

Synonyms:
PTSA; 4-Methylbenzenesulfonic acid monohydrate; 4-Toluenesulfonic acid monohydrate; PTSA monohydrate; TsOH monohydrate; 4-methylbenzene-1-sulfonic acid hydrate

CAS No:
104-15-4

Molecular Formula:
C7H8O3S

Molecular Weight:
190.22

Appearance:
White cystals or white to pink crystalline powder

Purity:
≥98.5%

Melting Point:
103-106°C (lit.)

Water (KF):
10-13%

Solubility:
Water: 10g + 50mL, clear, colorless

Storage and Stability:
May be stored at RT.