Tellurium Dioxide
We supply tellurium dioxide of 3N-5N
Appearace:white solid
Density :5.670 g/cm3
Melting point:733℃
Packing: 1 kg/bottled
Specifications:
High purity tellurium dioxide in white color is crystal powder and not absorb the water, melting point 733 ℃. Tellurium and its compounds are of semiconductors in the electronics industry. Mainly for semiconductor devices, black metallurgy, alloy, chemical raw materials and cast iron, rubber, glass, electronic industries with as additive. In addition, tellurium also can make plating solution of brightener, petroleum cracking catalysts, ceramic and glass coloring. Added to the steel can increase ductility. Add to plumbum to increase strength and corrosion resistance. Or rubber vulcanization agent, manufacturing photoconductive resistance, si-based ones, thermoelectric, electronic refrigeration, semiconductor materials. In cold casting, cutting, metal coating, biological and medical in the process of the application. TeO2(99.9%)
Fe： 0.001% Bi： 0.001% Pb： 0.02%
Cu： 0.001% Zn： 0.001% As： 0.02%
b.TeO2(99.999%)
The total content of Al,Ca,Cu,Fe and Pb is below 10ppm.
Cu 1ppm, Mg 0.5ppm, Ni 0.5ppm, Ca 1.0ppm,
Fe 1.0ppm, Al 0.5ppm, Se 0.4ppm, Pb 0.5ppm
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gallium metal |
Brand No.
Purity Grade 99.99999% 99.9999% 99.999% 99.99%
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(ppm, max) Cu 0.002 0.05 1.5 5
Pb 0.005 0.06 1.8 12
Zn 0.02 0.1 0.4... |
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selenious acid |
We sell Selenious Acid(H2SeO3 ) 98%
Selenious Acid H2SeO3 98% Min 60.4% Min
FORMULA: H 2 SeO 3
MOLECULAR WEIGHT: 128.97
CAS No.: 7783-00-8
EINE... |
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dust-free antimony trioxide |
Dust-free antimony trioxide is a kind of highly decentralized micro-particles;it is obtainable by chemical treatment of the surface of antimony oxi... |
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Lead Telluride |
We can supply PbTe with purity 99.99% and 99.999%
Alias: telluroxo-lambda~2~-plumbane;
Form: lump or powder
CAS：1314-91-6
EINECS： ... |
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bismuth granule |
We produce and sell bismuth granule
Brand Chemical composition（%）
Bi≥ Impurity content ≤
Cu Pb Zn Fe Ag As Te Sb Cl Sn Cd Hg Ni Total
Bi99.99 9... |
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