99.999% pure tellurium ingot 5N and 6N

Product Overview

Description

Model	ESTe.3N	ESTe.4N	ESTe.5N
Te(Min%)	99.9	99.99	99.999
Impurity	Max ppm
Ag	20	5	0.1
Al	10	8	0.4
Cu	10	5	0.5
Cd	10	2	0.1
Fe	30	10	0.2
Mg	50	5	0.1
Ni	50	5	0.5
Pb	20	10	0.5
Sn	20	3	1
Zn	30	5	0.1
Se	30	15	1
Si	20	10	0.5
Bi	30	8	0.4
Total	500	100	10

Characteristic:It has a silver-white metallic appearance, a density of 6.25 g / cm3, a melting point of 452 ° C, a boiling point of 1390 ° C, and a hardness of 2.5 (Mohs hardness). There are two allotropic forms, crystalline and amorphous. Tellurium burns in the air with a blue flame and generates tellurium dioxide; it can react with halogens but not with sulfur and selenium. Soluble in sulfuric acid, nitric acid, potassium hydroxide and potassium cyanide solution. Poor heat transfer and electrical conductivity. Tellurium with a purity of more than 99.99% is called high-purity tellurium.

Application:It is used to prepare II-VI compound semiconductors, solar cells, thermoelectric conversion elements, refrigeration elements, light-emitting diodes, nuclear radiation detection, infrared detectors and other basic materials.