Nitrogen dioxide
[CAS# 10102-44-0]

Identification

• Classification: Inorganic chemical industry >> Industrial gases such as hydrogen, nitrogen and oxygen
• Name: Nitrogen dioxide
• Synonyms: Nitrogen dioxide (NO2); Nitrogen peroxide
• Molecular Formula: NO₂
• Molecular Weight: 46.01
• CAS Registry Number: 10102-44-0
• EC Number: 233-272-6

Properties

• Density: 1.45 g/cm^3*
• Melting point: -9.3 ºC^**
• Refractive index: 1.40 (20 ºC)^**

^* "International Chemical Safety Cards" data were obtained from the National Institute for Occupational Safety and Health (US)

^** "Hazardous Substances Data Bank" data were obtained from the National Library of Medicine (US)

Safety Data

• Hazard Symbols: GHS04;GHS03;GHS06;GHS05 Danger
• Hazard Statements: H270-H330-H314
• Safety Description: S9;S26;S28;S36/37/39;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314
Oxidising gases	Ox. Gas	1	H270
Acute toxicity	Acute Tox.	1	H330
Gases under pressure (liquid)	Press. Gas (Liq.)		H280
Serious eye damage	Eye Dam.	1	H318
Acute toxicity	Acute Tox.	2	H330
Gases under pressure (compressed)	Press. Gas (Comp.)		H280

• Transport Information: UN 1067 - class 2 - Nitrogen dioxide