Home Categories Inorganic chemistry Erbium oxide
A3993012

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

Pack Size Price Stock Quantity
10G RMB41.60 In Stock
50G RMB127.20 In Stock
250G RMB488.80 In Stock
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Update time: 2022-07-08

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/nmb/nmc/nmα/oβ/oγ/oV/nm3
1.05471.05471.05479090901.1732

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.

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