Agent Name

Benzenesulfonic acid

CAS Number

98-11-3

Formula

C6-H6-O3-S

Major Category

Other Classes

Synonyms

17-120A; Benzene sulphonic acid; Benzenemonosulfonic acid; Besylic acid; Kyselina benzensulfonova [Czech]; Phenylsulfonic acid; [ChemIDplus] UN2585

Category

Benzenesulfonic Acid Derivatives

Description

Soluble in water; [ChemIDplus] Light brown deliquescent solid; [CHEMINFO] Grey to yellow hygroscopic solid; [ICSC]

Sources/Uses

Used as a chemical intermediate and a catalyst in the manufacturing of alkyd resins, phenol-formaldehyde resins, and in the polymerization of diolefins; [HSDB] Used as an acid catalyst in the foundry industry; [Reference #1]

Comments

A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; [ICSC] Mild irritant effect to human skin after contact with 0.2% solution; [RTECS] See "p-Toluenesulfonic acid."

Exposure Assessment
Vapor Pressure

2.36E-5 mm Hg

Explanatory Notes

Flash point = 113 deg C; mp = 51 deg C; bp = 190 deg C; [ICSC] mp = 45-50 deg C; [MSDSonline]

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: