Sodium oxide
[CAS# 1313-59-3]

Identification

• Classification: Inorganic chemical industry >> Inorganic salt >> Oxides and peroxides >> Metal oxide
• Name: Sodium oxide
• Synonyms: Disodium monoxide; Disodium oxide
• Molecular Formula: Na₂O
• Molecular Weight: 61.98
• CAS Registry Number: 1313-59-3
• EC Number: 215-208-9

Properties

• Density: 2.25 g/cm³ (0 ºC)^*
• Melting point: 1300 ºC^**
• Refractive index: 1.465^***

^* Rengade, E.; Annales de Chimie et de Physique 1908, V11(8), P348-432.

^** Kumagai, Kenji; JP 52024911 A 1977.

^*** Ottermann, Clemens; WO 2007031317 A2 2007.

Safety Data

• Hazard Symbols: C
• Risk Codes: R14;R35
• Safety Description: S26;S36/37/39;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314
Serious eye damage	Eye Dam.	1	H318
Skin corrosion	Skin Corr.	1A	H314
Substances or mixtures corrosive to metals	Met. Corr.	1	H290
Acute toxicity	Acute Tox.	3	H301
Specific target organ toxicity - single exposure	STOT SE	3	H335
Oxidising solids	Ox. Sol.	1	H271
Specific target organ toxicity - single exposure	STOT SE	1	H370
Skin sensitization	Skin Sens.	1	H317
Reproductive toxicity	Repr.	1B	H360

• Transport Information: UN 3085 8(5.1) / PGI