Sulfur dioxide
[CAS# 7446-09-5]

Identification

• Classification: Inorganic chemical industry >> Inorganic salt >> Oxides and peroxides >> Non-metal oxides and peroxides
• Name: Sulfur dioxide
• Molecular Formula: SO₂
• Molecular Weight: 64.06
• CAS Registry Number: 7446-09-5
• EC Number: 231-195-2

Properties

• Melting point: -73 ºC
• Boiling point: -10 ºC

Safety Data

• Hazard Symbols: GHS04;GHS06;GHS05 Danger
• Hazard Statements: H331-H314
• Safety Description: S9;S26;S36/37/39;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314
Acute toxicity	Acute Tox.	3	H331
Gases under pressure (liquid)	Press. Gas (Liq.)		H280
Serious eye damage	Eye Dam.	1	H318
Gases under pressure (compressed)	Press. Gas (Comp.)		H280
Acute toxicity	Acute Tox.	2	H330
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - repeated exposure	STOT RE	1	H372
Specific target organ toxicity - single exposure	STOT SE	1	H370

• Transport Information: UN 1079