p-Toluenesulfonic acid monohydrate

Purity: reagent grade, ≥98.5%

Synonym(s): 4-methylbenzenesulfonic acid monohydrate; 4-methylbenzene-1-sulfonic acid hydrate; PTSA Monohydrate；PTSA；Tosic acid monohydrate

Formula: C7H8O3S·H2O Molecular Weight: 190.22

CAS Number: 6192-52-5 Beilstein Number: 3568023 EC Number: 203-180-0 MDL Number: MFCD00142137 PubChem CID: 521998

Properties

Shelf life: 1460 days

Solubility: Soluble in water, alcohols, ether，and other polar organic solvents.

Sensitivity: Hygroscopic

Boiling point: 140 °C/20 mmHg

Melting point: 103-107℃

InChl: InChI=1S/C7H8O3S.H2O/c1-6-2-4-7(5-3-6)11(8, 9)10; /h2-5H, 1H3, (H, 8, 9, 10); 1H2

Safety Information

Pictograms: GHS05; GHS07

Signal Word: Danger

Hazard Statements: H335; H314; H412; H290

Precautionary Statements: P305+P351+P338; P280; P310; P501; P303+P361+P353; P304+P340; P363

WGK: 1

Storage: Argon charged

Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Faceshields, Gloves