used as oxidizer, catalyst, and chemical reagent, etc. Name : Selenium DioxideChemical Composition : SeO2 Red-white or shiny needle crystal powder, irritating smellMolecular weight: 110.96 Vapor pressure 0.13kPa (157 c) Melting point: 340 ~ 350 c Solubility: Insoluble in water, ethanol, acetone, benzene, acetic acid Density: Relative density (water = 1) 3.95 Stability: StableProperties: White, ...