Selenium technical
Country of origin:
Uzbekistan
Production standart:
GOST (State Standard) 10298-79
Production cycle:
- sludge decontamination;
- burning of sludge and trapping selenium oxides with washing gas to produce saturated solutions;
- precipitation of selenium from solutions;
- filtration and drying of selenium sediment;
- smelting selenium to produce ingots.
Application:
Technical selenium is intended for the glass and paint and varnish industries, pharmaceutical production, production of food additives, pigments, rubber, high-quality alloys, semiconductors, for the production of pure selenium and other purposes.
Form and packaging:
Technical selenium is produced in ingots of no more than 7.5 kg. They have a truncated shape pyramids. Technical selenium ingots are wrapped in wrapping paper and placed in wooden boxes according to State Standard 5959. The mass of selenium in a box does not exceed 50 kg.
Technical selenium is produced in accordance with the requirements of State Standard 10 298 in following grades: ST-0 and ST-1.
Technical selenium is produced in accordance with the requirements of State Standard 10 298 in following grades: ST-0 and ST-1.
99
ST-01
0,01
0,005
0,005
0,005
0,1
0,005
0,02
99,8
ST-0
0,005
0,002
0,002
0,001
0,05
0,003
0,005
Grades
Fe
Cu
Pb
Hg
Te
S
Not less
Se
Chemical composition, % impurities no more than
As
technical specification:
0,005
0,005
Al
The product information provided here is indicative and is subject to confirmation at the time the order is processed.