Molecular formula: Na2SeO3
Molecular weight: 172.94 (anhydrous)
Selenium content: 44.84%
Description: White crystal, can contain 5 crystal waters, stable in air, can lose moisture in dry air, soluble in water, insoluble in ethanol.
As a nutritional fortifier, selenite can inhibit the growth and reproduction of tumor cells. Sodium selenite is used as a selenium fortifier in feed. It can also be used as a biochemical reagent to test alkaloids and test seed germination.
| Item | Index | Item | Index |
| Sodium selenite content（Basis dry）% | 96.4-100.8 | Sulfate（Basis S04）% | ≤0.2 |
| Selenium content（Basis dry）% | 44.0-46.0 | Arsenic（As）mg/kg | ≤0.5 |
| Dry weight loss% | ≤1.0 | Heavy metal（Basis Pb）mg/kg | ≤10.0 |
| Alkalinity（mol/g） | ≤0.25 | Water insoluble matter % | ≤0.1 |
| Chloride（Basis Cl）% | ≤0.1 | / | / |
