Benzenesulfonic acid
[CAS# 98-11-3]

Identification

• Classification: Organic raw materials >> Carboxylic compounds and derivatives >> Halogenation, sulfonation, nitration or nitrosation of carboxylic acids
• Name: Benzenesulfonic acid
• Molecular Formula: C₆H₆O₃S
• Molecular Weight: 158.17
• CAS Registry Number: 98-11-3
• EC Number: 202-638-7

Properties

• Melting point: 45-50 ºC
• Water solubility: soluble

Safety Data

• Hazard Symbols: C
• Risk Codes: R22;R34
• Safety Description: S26;S36/37/39;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Skin corrosion	Skin Corr.	1B	H314
Skin corrosion	Skin Corr.	1C	H314
Substances or mixtures corrosive to metals	Met. Corr.	1	H290
Serious eye damage	Eye Dam.	1	H318
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319

• Transport Information: UN 2583