Selenium Dioxide (SeO2) Powder is used in the production of manganese, and the galvanic industry. Under normal pressure, it is heated to 317℃ for sublimation. Heeger Materials offers a selection of over 100 high-purity products, including metals, metal oxides, and metal salts, with 99.999% purity or higher.

Selenium Dioxide Powder Properties

• Chemical formula: SeO₂
• Molar mass: 110.96 g/mol
• Appearance: White crystals, turn slightly pink with trace decomposition
• Odor:  rotten radishes
• Density: 3.954 g/cm³, solid
• Melting point: 315 °C 
• Boiling point: 684.9 °C
• 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 in ethanol: 6.7 g/100 mL (15 °C)
• Solubility in acetone: 4.4 g/100 mL (15 °C)
• Solubility in acetic acid: 1.11 g/100 mL (14 °C)
• Solubility in methanol: 10.16 g/100
• Hazardous Class: Class 6.1
• UN No.: UN3283
• CAS: 7446-08-4

Selenium Dioxide Powder Applications

• Used as a catalyst for the production of electrolytic manganese.
• Used as a raw material for the production of selenium compounds (such as sodium selenite, sodium selenate, zinc selenate, barium selenate, and barium selenite), which are used as decolorizing agents, coloring agents, and feed additives for glass.
• Used as an important reagent that can be used to oxidize the α-methylene carbon atoms to form allylic hydroxy derivatives.
• Used as an agent for "bluing" steel, which forms a blue-grey sheen on the steel surface when heated to a certain temperature, which can protect the steel from rusting.

Selenium Dioxide Powder  Shipping and Packing

Selenium Dioxide (SeO2) Powder is carefully packaged in carton boxes with foam protection to minimize damage during storage and transportation and to preserve the quality of our products in their original condition. The vacuum packing is 1kg/bag, 25kg/barrel, or based on specific requirements.