Erbium oxide , 99.5%metalsbasis , 12061-16-4

Synonym(s):
Dierbium trioxide;Erbia

CAS NO.：12061-16-4

Empirical Formula: Er2O3

Molecular Weight: 382.52

MDL number: MFCD00010991

EINECS: 235-045-7

PRODUCT Properties

• Melting point: 2400°C
• Boiling point: 3000℃
• Density: 8.64 g/mL at 25 °C(lit.)
• vapor pressure: 0Pa at 25℃
• storage temp.: Inert atmosphere,Room Temperature
• solubility: Soluble in acids
• form: Powder
• Specific Gravity: 8.64
• color: rose
• Water Solubility: insoluble
• Sensitive: Hygroscopic
• Crystal Structure: Sc2O3 type
• crystal system: Cube
• Merck: 14,3646
• Space group: Ia3
• Lattice constant:
  • a/nm: 1.0547
  • b/nm: 1.0547
  • c/nm: 1.0547
  • α/o: 90
  • β/o: 90
  • γ/o: 90
  • V/nm3: 1.1732
• InChIKey: VQCBHWLJZDBHOS-UHFFFAOYSA-N

Description and Uses

Erbium(III) oxide (Er2O3) is a member of rare-earth sesquioxides. Er2O3 powder has a pink appearance and the crystal structure of the material is generally known to be cubic. Erbium oxide found to be insoluble in water and soluble in mineral acids. Er2O3 provides various excellent properties such as high dielectric constant (≈14), high mechanical strength, high chemical and thermal stability in contact with Si, wide bandgap (~5.4 eV), substantial hardness and high transparency in visible light.

Erbium(III) oxide is used for vacuum deposition electrical, optical and photoluminescenc, gate dielectrics in semi conductor devices, and in Biomedicine.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P264-P280i-P305+P351+P338-P337+P313-P261-P280a-P304+P340-P405-P501a
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 36/37-24/25-36-26
• WGK Germany: 2
• RTECS: KD9250000
• TSCA: Yes
• HS Code: 28469019
• Toxicity: rat,LD50,oral,> 5gm/kg (5000mg/kg),Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 12, Pg. 619, 1993.