Products
| Selenium dioxide | |
| Product name | Selenium dioxide |
| Chinese name | 亚硒酐;二氧化硒;无水亚硒酸;亚硒酸酐;硒合剂 |
| English name | Selenium dioxide |
| Molecular formula | O2Se |
| Molecular weight | 110.96 |
| CAS No. | 7446-08-4 |
| Product photo |  |
| Structure |  |
| chemical properties | The boiling point of 684.9 ° C (lit.) Density of 4.81 g/mL at 25 ° C (lit.) Vapor pressure 1 mm Hg (157 ° C) Flash point 315 ° c. Solubility H2O: soluble water solubility: 38.4 g / 100 mL (14℃) sublimation points: 315℃ Heavy Metals Of Selenium Dioxide:0.0001% max。Acidity (pKa) ：2.62; 8.32 Refractive index(nD) ：> 1.76 Molar mass：110.96 g/mol |
| Appearance | White or light yellow monoclinic system crystallization or tetragonal crystal system |
| Melting point | 315 °C (subl.)(lit.) |
| Content | >99.8% |
| Moisture | |
| Packing | 1kg,5kg,25kg |
The other explanation |
For making high purity selenium and other selenium compounds, or drug of oxidant and catalyst in organic synthesis |
