Selenium is a chemical element with symbol Se and atomic number 34. It is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium.
| Selenium Powder, GR - Specification | |
| Grade | AR / GR |
| Categories | Metals, Selenium |
| Assay | 99.5%+ |
| Appearance (Form) | Powder |
| Appearance (Colour) | Black or gray to black |
| Size | 325 mesh |
| Melting point | 217 °C(lit.) |
| HSN Code | 28049000 |