Erbium Oxide Powder -Er2O3

Purity---
ReO/TREO:99.995％,99.99％,99.999％ TREO:99.5％,99.9％,99.95％

Shape---
Powder

Dimension---
-325mesh

Property---
pink crystals powder

Application---
Raw material

Erbium oxide, is synthesized from the lanthanide metal erbium. It was partially isolated by Carl Gustaf Mosander in 1843, and first obtained in pure form in 1905 by Georges Urbain and Charles James. It has a pink color with a cubic crystal structure. Under certain conditions erbium oxide can also have a hexagonal form.Erbium oxide is toxic when inhaled, taken orally, or injected into the blood stream in massive amounts. The effect of erbium oxides in low concentrations on humans over long periods of time has not been determined.

Erbium metal tarnishes slowly in air. Erbium burns readily to form erbium oxide:

Formation of erbium oxide: 4 Er + 3 O2 → 2 Er2O3

Erbium oxide is insoluble in water and soluble in mineral acids. Er2O3 readily absorb moisture and carbon dioxide from the atmosphere. It can react with acids to form the corresponding erbium(III) salts.

Reaction with hydrochloric acid: Er2O3 + 6 HCl → 2 ErCl3 + 3 H2O

The applications of Er2O3 are varied due to their electrical, optical and photoluminescence properties.

Basic Infomation

CAS Registry Number:12061-16-4

ChemSpider:4298039

PubChem:159426

Chemical formula:Er2O3

Molar mass:382.56 g/mol

Appearance:pink crystals

Density:8.64 g/cm3

Melting point:2,344 °C (4,251 °F; 2,617 K)

Boiling point:3,290 °C (5,950 °F; 3,560 K)

Solubility in water:insoluble in water

Crystal structure:Cubic, cI80

Space group:Ia-3, No. 206

Specific heat capacity (C) :108.5 J·mol−1·K−1

Std molar entropy (So298) :155.6 J·mol−1·K−1

Std enthalpy of formation (ΔfHo298):−1897.9 kJ·mol−1