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High Purity Selenium |
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MATERIAL OVERVIEW Characteristics: Amorphous red powder, becoming black on standing and crystalline on heating; vitreous and colloidal forms may be prepared. Amorphous form softens at 40 °C and melts at 217 °C. Crystalline selenium is a p-type semiconductor. Electrically, it acts as a rectifier, and has marked photoconductive and photovoltaic action (converts radiant to electrical energy). The electrical conductivity increases with increasing light irradiation. Soluble in concentrated nitric acid and in (liquid form) common alkalies. Forms binary alloys with silver, copper, zinc, lead, etc. Low toxicity. A necessary nutritional factor for animals. To view a photo of the item hover over the
GENERAL PROPERTIES
TYPICAL ANALYSES Impurities in ppm
SELENIUM POWDER, SHOT, PELLETS, & INGOT
Powder, shot, pellets, and ingots are packaged to order and sold by the gram or kilogram.
SELENIUM COMPOUNDS
Compounds are packaged to order and sold by the gram or kilogram.
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