Selenium Dioxide , SeO2

Place of Origin: Hunan China (Mainland) Colour: White

Packaging & Delivery

Packaging Detail : Pack 25kgs in one cardboard drum and inner lined with secure plastic bag. We could also pack according to customer's special requests.

Delivery Detail Within 15 days after order confirmation





used as oxidizer, catalyst, and chemical reagent, etc.

Name : Selenium Dioxide

Chemical Composition : SeO2

Red- white or shiny needle crystal powder, irritating smell

Molecular 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: Stable Properties: White, glittering squared crystal, specific weight is 59- 3. 95S , is extremely apt for evaporation; sublimation temperature is 315 S , the melting point is 340- 350. It would easily turns into selenious acid when soluble in water (H2SeO3) . The gasous selenium dioxide is yellowrish green, with stink of garlic, and toxic. The selenium dioxide is a strong oxidizer, and can be reduced into elementary selenium by sulfur dioxide, hydrogen, a mm onia, carbon monoxide and carbon. Applications: used as oxidizer, catalyst, and chemical reagent, as well as be used as addictives for electrolytic manganese enterprises .