Erbium oxide

CAS Number
12061-16-4
EC Number
235-045-7

What is Erbium oxide?

Erbium oxide (CAS 12061-16-4), also known as erbia, is a rare earth oxide used primarily as a pink-to-rose colorant and dopant material.

Where is Erbium oxide used?

  • Glass and specialty optics: rose tint in decorative glassware, lenses and glazes
  • Cosmetics and personal care: pigment in mineral makeup, eyeshadow and blush
  • Printing inks and packaging coatings: colour stability in specialty pigment blends
  • Textile and paper: dyeing auxiliaries and specialty coatings
  • It also serves as a dopant in advanced material formulations.

Commercial specifications

  • High-purity grades from 99% to 99.999% (5N)
  • Purity tier is the primary specification buyers evaluate
  • Particle size specifications available for application-specific requirements

Other Names (Synonyms)

erbia|Erbium oxide (Er2O3)|Erbium sesquioxide|Dierbium trioxide|Erbium(3+) oxide|Erbium trioxide

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What are the physical properties of Erbium oxide?

Melting Point 2430 °C (cubic)
Boiling Point 3000°C
Density 8.64 g/cm³
Appearance pink powder
Color rose
Form nanopowder
Water Solubility insoluble
Vapor Pressure 0Pa at 25℃

Which trade and regulatory codes apply to Erbium oxide?

HS Code 28469019
Storage Class 11 - Combustible Solids
WGK (Germany) 2
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