Technical granulated selenium
Main characteristics
- Technical specifications 1769-042-05774969-2013;
- Selenium content — min 99%;
- granule size — max 10 мм;
- packaging — in a container with a polyethylene lid with a weight of 20 kg or a flexible intermediate bulk container with a weight of 1000 kg.
Selenium is obtained by the processing of anode slime formed during electrolytic copper refining.
Depending on the chemical composition of selenium, grades STG0 and STG1 of technical granulated selenium are established.
Selenium is produced in the form of granules.
Chemical composition:
| Item name | Standard for the grade | |
|---|---|---|
| STG0 | STG1 | |
| Mass fraction of Selenium %, min | 99,5 | 99,0 |
| Mass fraction of Fe, %, max | 0,010 | 0,03 |
| Mass fraction of Cu, %, max | 0,0050 | 0,03 |
| Mass fraction of Pb, %, max | 0,005 | 0,05 |
| Mass fraction of Hg, %, max | 0,0050 | 0,25 |
| Mass fraction of Te, %, max | 0,100 | 0,20 |
| Mass fraction of Arcenic (As), %, max | 0,005 | 0,03 |
| Mass fraction of S, %, max | 0,020 | 0,07 |
| Mass fraction of Al, %, max | 0,005 | 0,04 |
Notes:
Technical grade selenium is used in manufacture of glass, paints, enamels and in production of high purity selenium.
Product form and packaging
Packaging: a plastic bag 0.120 mm. thick; a synthetic fabric bag, wooden box.
Net weight of Selenium packed into the box does not exceed 50 kg.
Selenium is transported by covered vehicles.
Upon agreement with the customer it is possible to use other methods of packaging and packaging materials ensuring safety and quality of the products.
Warranty storage period is five (5) years from the moment of manufacture in an unheated room, or eight (8) years from the moment of manufacture in a heated room.
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Certification
Quality management system, environmental management system, and OHSAS management system was certified by TÜV NORD, German certification body, against requirements of standards ISO 9001:2015, ISO 14001:2015 and OHSAS 18001:2007.
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