Selenium

Se
34 78.971

Selenium

Our Products Product Characteristics Application Areas
ST-0, ST-1 Selenium
Producer Principal applications Product Form Packaging
Polar division (Norilsk combine)
  • Metallurgy
  • Glass industry
  • Chemical industry
  • Feedstock and fertilizers
Powder

Description:
Polypropylene bags in wooden or steel boxes

Wooden boxes size:
420×360×240 mm

Steel boxes size:
1,220×1,260×1,175 mm

Bags weight:
up to 25 kg

Steel box gross weight:
1,880-2,440 kg

Wooden box gross weight:
33-36 kg

CHEMICAL COMPOSITION, %
Element State standard
10298-79
for ST-0
Annual average 2016 State standard
10298-79
for ST-1
Se99.899.899.0
Fe0.005˂0.00200.01
Cu0.002˂0.00100.005
Pb0.002˂0.00100.005
Hg0.001˂0.000600.005
Te0.050.0340.1
As0.003˂0.00100.005
S0.005˂0.00200.02
Al0.005˂0.00200.005
Sb-˂0.00010-
Physical and chemical characteristics
Latin name Selenium (Se)
Group in Mendeleev's periodic table ХVI
Atomic number 34
Atomic weight 78.971
Density 4.79 g/sm3
Melting point t 217 °С

Selenium consumption is high in metallurgy, electrolytic manganese is produced with the use of selenium. Selenium enhances machinability of stainless steel and certain types of copper alloys. In glass industry, selenium is used for glass colorizing/decolorizing. Selenium is consumed in semiconductor sector; it is used in manufacturing of electric current rectifiers, photocells, photographic exposure meters, solar cells, optical devices. Selenium is added to animal feed and fertilizers.

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