Holmium Sulfate 99.9%
Holmium Sulfate 99.9%, code 6705
Formula: Ho2(SO4)3.xH2O
CAS No.: 15622-40-9
Molecular Weight: 618.05 (anhy)
Density: N/A
Melting point: N/A
Appearance: White crystalline
Solubility: Soluble in water, moderately soluble in strong mineral acids
Stability: Slightly  hygroscopic
Multilingual: HolmiumSulfat, Sulfate De Holmium, Sulfato Del Holmio
Holmium Sulfate also called Holmium Sulphate, has specialized uses in ceramics and halide lamps. 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.
Products available
Product Code: 6705 Standard Specification Typical Analysis Inspection Methods
Grade 99.9% 99.9%  
CHEMICAL COMPOSITION
Ho2O3 /TREO (% min.) 99.9 99.9
TREO (% min.) 40 40 Volumetric Method
Rare Earth Impurities % max. %
Tb4O7/TREO
Dy2O3/TREO
Er2O3/TREO
Tm2O3/TREO
Yb2O3/TREO
Lu2O3/TREO
Y2O3/TREO		 0.01
0.03
0.05
0.005
0.005
0.005
0.01		 0.01
0.03
0.03
0.005
0.003
0.005
0.01		 ICP-Atomic Emission
Spectrographic
Non-Rare Earth Impurities % max. %
Fe2O3
SiO2
CaO
Cl-
CoO
NiO
CuO		 0.001
0.005
0.005
0.02		 0.001
0.003
0.005
0.01		 Spectrographic

Atomic Absorption Spectrographic
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 Request for Quotation, you will receive our prompt reply within 24 hours.