Selenium dioxide
MATERIAL OVERVIEW
Characteristics: yellowish white to reddish powder or crystals. A white or creamy-white volatile lustrous crystal or crystalline powder with a pungent sour smell. Melting point 340 deg C. Density 3.954 g / cm3 . Toxic by ingestion and inhalation.
Application:
Selenium dioxide is a reagent in organic synthesis. Selenium dioxide is also used in glass preparation and photographic developing
Selenium dioxide products from Wuhan Xinrong
| Material name | Purity | size |
| Selenium dioxide | 4N | |
Selenium dioxide shape and purity could be customized by customer request
Packing: After being packed in polyester films, then packed in plastic films or glass tubes in vacuum.
GENERAL PROPERTIE
| Compound Formula | Sn2O3 |
| CAS | 7446-08-4 |
| Appearance | White, yellowish white, or red crystalline solid |
| Molecular Weight | 110.96 g/mol |
| Melting Point: | 315 °C (subl.)(lit.) |
| Boiling Point | 684.9 °C (lit.) |
| Density | 4.81 g/ml at 25 °C(lit.) |
| Form M | crystals or powder |
| Solubility in water | 38.4 g/100 mL (20 °C) 39.5 g/100 ml (25 °C) 82.5 g/100 mL (65 °C) |
| Solubility | soluble in benzene |
| Solubility inethanol | 6.7 g/100 mL (15 °C) |
| Solubility inacetic acid | 1.11 g/100 mL (14 °C) |
| Solubility inmethanol | 10.16 g/100 mL |
| Solubility inacetone | 4.4 g/100 mL (15 °C) |
TYPICAL ANALYSES
Impurities in %
| Content | Standard value (% wt.) |
| SeO2 | >98 |
| Te | 0.001 |
| Cu | 0.001 |
| Fe | 0.001 |
| Pb | 0.001 |
| Cd | 0.001 |
| Ni | 0.001 |
| As | 0.001 |
| Co | 0.001 |
| S | 0.03 |
| Water Soluble Material | 0.20 |
