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Holmium oxide

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Product

Molecular Formula:Ho2O3

Molecular Weight:377.86

CAS No:12055-62-8

Property:Light yellow powder. Soluble in water, sparingly soluble in strong mineral acids. Easily hygroscopic.

Specification:

Degree of cleanliness
99.999%-- 99.99%-- 99.9%-- 99%
CHEMICAL COMPOSITION
Ho2O3/TREO (% min.)
99.999-- 99.99-- 99.9 --99
TREO (% min.)
99-- 99-- 99-- 99
Losses during combustion (% max.)
0.5-- 0.5-- 1-- 1
Rare Earth impurities
% max.-- % max.-- % max.-- % max.
Tb4O7/TREO
0.0001--0.0005-0.01-0.1
Dy2O3/TREO
0.0005--0.001-0.03-0.3
Er2O3/TREO
0.0005--0.005-0.03-0.3
Tm2O3/TREO
0.0001--0.0005-0.005-0.1
Yb2O3/TREO
0.0001--0.0005-0.005-0.01
Lu2O3/TREO
0.0001--0.0005-0.005-0.01
Y2O3/TREO
0.0001--0.001-0.01-0.05
Non-Rare Earth impurities
% max. --% max. --% max. --% max.
Fe2O3
0.0002--0.0005-0.01-0.005
SiO2
0.001--0.001-0.005-0.02
CaO
0.003--0.005-0.005-0.02
Cl-
0.005--0.005-0.02-0.05
CoO
0.0001--0.0005
NiO
0.0001--0.0005
CuO
0.0001--0.0005

Packing:

Usage:

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