Rare Earth Product Information
& Standard Specifications
product details
Erbium Hydroxide
Erbium Hydroxide

Erbium Hydroxide, also called Erbium Hydrate, is an important colourant in glasses and porcelain enamel glazes. High purity Erbium Hydroxide is widely applied as dopant in making optical fibre and amplifier.
Formula Er(OH)3.xH2O
CAS No. 14646-16-3
Molecular Weight 218.26
Appearance Purple
Solubility Insoluble in water, soluble in strong mineral acids
Stability Slightly hygroscopic
GermanErbiumHydroxid FrenchHydroxyde De Erbium SpanishHidroxido Del Erbio
Standard Specifications
Product Code 6851 6853 6855 6857
Grade 99.999% 99.99%  99.9% 99%
CHEMICAL COMPOSITION     กก กก
Er2O3/TREO (% min.) 99.999 99.99 99.9 99
TREO (% min.) 60 60 60 60
Rare Earth Impurities % max. % max. % max. % max.
Tb4O7/TREO
Dy2O3/TREO
Ho2O3/TREO
Tm2O3/TREO
Yb2O3/TREO
Lu2O3/TREO
Y2O3/TREO		 0.0001
0.0001
0.0005
0.0005
0.0001
0.0001
0.0001		 0.0005
0.0005
0.001
0.005
0.0005
0.0005
0.0005		 0.01
0.01
0.03
0.03
0.005
0.005
0.1		 0.05
0.1
0.3
0.3
0.1
0.01
0.5
Non-Rare Earth Impurities % max. % max. % max. % max.
Fe2O3
SiO2
CaO
Cl-
CoO
NiO
CuO
 		0.0002
0.001
0.003
0.005
0.0001
0.0001
0.0001
 0.0005
0.001
0.005
0.005
0.0005
0.0005
0.0005
0.001
0.005
0.005
0.02
 0.005
0.02
0.02
0.05
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The standard specifications are only for reference, custom specification manufactures are welcomed. More detailed information including MSDS sheet, lot weight, packing condition, lead time and price are all ready on request, please just click at the product's grade, or Send An Enquiry, you will receive our prompt reply within 24 hours.

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