China Gold Supplier for Cs0.32WO3 - Holmium Oxide – UrbanMines

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China Gold Supplier for Cs0.32WO3 - Holmium Oxide – UrbanMines Detail:

Holmium Oxide Properties

Other names	Holmium(III) oxide, Holmia
CASNo.	12055-62-8
Chemical formula	Ho2O3
Molar mass	377.858 g·mol−1
Appearance	Pale yellow, opaque powder.
Density	8.4 1gcm−3
Meltingpoint	2,415°C(4,379°F;2,688K)
Boilingpoint	3,900°C(7,050°F;4,170K)
Bandgap	5.3eV
Magneticsusceptibility(χ)	+88,100·10−6cm3/mol
Refractiveindex(nD)	1.8

High Purity Holmium Oxide Specification

ParticleSize(D50)	3.53μm
Purity (Ho2O3)	≧99.9%
TREO (TotalRareEarthOxides)	99%

REImpuritiesContents	ppm	Non-REEsImpurities	ppm
La2O3	Nd	Fe2O3	<20
CeO2	Nd	SiO2	<50
Pr6O11	Nd	CaO	<100
Nd2O3	Nd	Al2O3	<300
Sm2O3	<100	CL¯	<500
Eu2O3	Nd	SO₄²⁻	<300
Gd2O3	<100	Na⁺	<300
Tb4O7	<100	L.O.I	≦1%
Dy2O3	130
Er2O3	780
Tm2O3	<100
Yb2O3	<100
Lu2O3	<100
Y2O3	130

【Packaging】25KG/bag Requirements:moisture proof, dust-free, dry, ventilate and clean.

What is Holmium Oxide used for?

Holmium oxide is one of the colorants used for cubic zirconia and glass, as a calibration standard for optical spectrophotometers, as a specialty catalyst, phosphor and a laser material, providing yellow or red coloring. It is used in making specialty colored glasses. Glass containing holmium oxide and holmium oxide solutions have a series of sharp optical absorption peaks in the visible spectral range. As most other oxides of rare-earth elements, holmium oxide is used as a specialty catalyst, phosphor and a laser material. Holmium laser operates at wavelength of about 2.08 micrometres, either in pulsed or continuous regime. This laser is eye safe and is used in medicine, lidars, wind velocity measurements and atmosphere monitoring. Holmium can absorb fission-bred neutrons, it is also used in nuclear reactors to keep atomic chain reaction from running out of control.

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