Technical Tellurium

Standard:GOST 17614-2018

Production cycle:

leaching of soda-telluric slags;
filtration of telluride pulp;
electrolysis and filtration of rough tellurium;
restoration with aluminum powder;
filtration and washing of telluride pulp;
aeration;
filtration and washing of tellurium;
drying, sieving and sealing of tellurium.

Application range: It is used for the production of alloys, thermoelectric materials, semiconductors, rubbers, glasses, light sources and other purposes.

Form and packing: Technical tellurium in powder has dark gray or black colors. Powdered tellurium of all brands must pass through a sieve with a grid accuracy of "1K" according to GOST 6613. They are packed in polyethylene bags according to GOST 17811-78. The bags must be brewed and packed in cotton bags and placed in boxes according to GOST 5959-80. The weight of the box (gross) should not exceed 50 kg.

Brand Т00

Component
Mass fraction of tellurium, %
Norm	99,95
The mass fraction of selenium, %
Norm	0,01
Mass fraction of lead, %
Norm	0,001
Mass fraction of copper, %
Norm	0,004
Mass fraction of sulfur, %
Norm	0,02
The presence of foreign objects (wood, scrap metal)
Norm	Not allowed

Component	Norm
Mass fraction of tellurium, %	99,95
The mass fraction of selenium, %	0,01
Mass fraction of lead, %	0,001
Mass fraction of copper, %	0,004
Mass fraction of sulfur, %	0,02
The presence of foreign objects (wood, scrap metal)	Not allowed

Brand Т00

Component
Mass fraction of tellurium, %
Norm	99,93
The mass fraction of selenium, %
Norm	0,01
Mass fraction of lead, %
Norm	0,001
Mass fraction of copper, %
Norm	0,002
Mass fraction of sulfur, %
Norm	0,04
The presence of foreign objects (wood, scrap metal)
Norm	Not allowed

Component	Norm
Mass fraction of tellurium, %	99,93
The mass fraction of selenium, %	0,01
Mass fraction of lead, %	0,001
Mass fraction of copper, %	0,002
Mass fraction of sulfur, %	0,04
The presence of foreign objects (wood, scrap metal)	Not allowed