Dierbium trioxide
[CAS# 12061-16-4]

Identification

• Classification: Inorganic chemical industry >> Inorganic salt >> Oxides of rare earth metals, yttrium or scandium
• Name: Dierbium trioxide
• Synonyms: Erbium(III) oxide
• Molecular Formula: Er₂O₃
• Molecular Weight: 382.52
• CAS Registry Number: 12061-16-4
• EC Number: 235-045-7

Properties

• Density: 8.64
• Water solubility: insoluble

Safety Data

• Safety Description: S24/25

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H332