| IUPAC name
| Other names
|Molar mass||382.56 g/mol|
|Melting point||2,344 °C (4,251 °F; 2,617 K)|
|Boiling point||3,290 °C (5,950 °F; 3,560 K)|
|Solubility|| Reacts with acids|
Insoluble in solvents
|Vapor pressure||~0 mmHg|
Std enthalpy of
|Safety data sheet||Sigma-Aldrich|
|Lethal dose or concentration (LD, LC):|
LD50 (Median dose)
|5.000 mg/kg (rat, oral)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Erbium(III) oxide is the oxide of erbium, with the formula Er2O3.
Erbium oxide readily absorbs moisture and carbon dioxide from the atmosphere, forming erbium(III) carbonate. It can react with acids to form the corresponding erbium(III) salts. This makes it a good precursor for many erbium compounds.
Erbium(III) oxide is a pinkish solid, insoluble in water.
Erbium(III) oxide is sold by chemical suppliers.
Erbium(III) oxide can be prepared by burning erbium metal in air or oxygen atmosphere.
- Make erbium salts
Erbium(III) oxide is toxic when inhaled, taken orally, or injected into the blood stream in massive amounts, though its effect at low concentrations on humans over long periods of time has not been determined.
In closed bottles, preferably air-tight.
Best to recycle this compound.