Holmium Nitrate Application
Holmium Nitrate has specialized uses in ceramics, glass, phosphors and metal halide lamps, and catalysts. Holmium is one of the colorants used for cubic zirconia and glass, providing yellow or red coloring. They are therefore used as a calibration standard for optical spectrophotometers and are available commercially. It is one of the colorants used for cubic zirconia and glass, providing yellow or red coloring. It is also used in Yttrium-Iron-Garnet (YIG) and Yttrium-Lanthanum-Fluoride (YLF) solid-state lasers found in microwave equipment (which are in turn found in a variety of medical and dental settings).
Holmium Nitrate Specification
Certificate of Analysis
Product Code
|
NO67-4N
|
NO67-3N
|
NO67-2N
|
Grade
|
99.99%
|
99.9%
|
99%
|
CHEMICAL COMPOSITION
|
|
|
|
Ho2O3 /TREO (% min.)
|
99.99
|
99.9
|
99
|
TREO (% min.)
|
39
|
39
|
39
|
Rare Earth Impurities
|
ppm max.
|
% max.
|
% max.
|
Tb4O7/TREO Dy2O3/TREO Er2O3/TREO Tm2O3/TREO Yb2O3/TREO Lu2O3/TREO Y2O3/TREO
|
20 20 50 10 10 10 10
|
0.01 0.05 0.05 0.005 0.005 0.005 0.01
|
0.1 0.3 0.3 0.1 0.01 0.01 0.05
|
Non-Rare Earth Impurities
|
ppm max.
|
% max.
|
% max.
|
Fe2O3 SiO2 CaO Cl- CoO NiO CuO
|
5 100 50 50 5 5 5
|
0.001 0.005 0.005 0.03
|
0.005 0.02 0.02 0.05
|