Hafnium - 99.99% GeO2 Germanium Dioxide powder – Xinglu

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Hafnium - 99.99% GeO2 Germanium Dioxide powder – Xinglu Detail:

Product Description

Features

1. Germanium dioxide is a stable, white powder that is most commonly extracted from sphalerite zinc ores and lignite coal fly ash.

2. Germanium concentrates can be treated via a chlorine distillation method that produces germanium tetrachloride (GeCl4).

3. This can then be hydrolyzed to GeO2.

4. This form of germanium dioxide has a hexagonal crystal structure and is soluble in water at a rate of 4.5g per litre (25°C).

Basic Info

1. Item: Germanium 99.999% 5n, germanium oxide powder, germanium dioxide GeO2

2. CAS No.: 1310-53-8

3. Purity: 99.999%

4. Particle Size: 100Mesh(0.15mm), 200Mesh(0.075mm)

5. Testing Method: ICP-MS or GDMS

6. MOQ: 1KG

Specification

Product Name	Germanium Dioxide
Appearance	Sliver White
Physical Size	Ingot, Granules, Powder, Pieces
Molecular Formula	GeO2
Molecular Weight	72.6
Melting Point	937.4 °C
Boiling Point	2830 °C
Thermal Conductivity	0.602 W/cm/K @ 302.93 K
Heat of Vaporization	68 K-cal/gm atom at 2830 oC

Impurities in ppm

Product: Germanium Dioxide GeO2

Purity: 99.999%

Elements	Concentration (ppm wt)
GeO2%	99.999min
As(ppm)	0.5max
Fe(ppm)	0.1max
Cu(ppm)	0.2max
Ni(ppm)	0.2max
Pb(ppm)	0.1max
Co(ppm)	0.2max
Al(ppm)	0.1max
Total content of impurity	10max

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