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Serving Research Institutions Worldwide Since 1950 |
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High Purity Arsenic |
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MATERIAL OVERVIEW Characteristics: Silver-gray brittle, crystalline solid that darkens in moist air. Allotropic forms: black, amorphous solid (beta-arsenic); yellow, crystalline solid. Mohs hardness 3.5; insoluble in water, caustic and nonoxidizing acids. Attacked by HCl in presence of oxidant. Reacts with nitric acid. Low thermal conductivity; a semiconductor. Derivation: Flue dust of copper and lead smelters, from which it is obtained as white arsenic (arsenic trioxide) in varying degrees of purity. This is reduced with charcoal. The commercial grade is not made in the U.S. Hazard: Highly toxic by ingestion and inhalation. A known carcinogen. OSHA standard for employee exposure is 10 ug/m of air. Respirators required for worker exposure to more than 500 ug/m ACGIH tolerance is 0.2 mg/m3 (As soluble compounds). To view a photo of the item hover over the
GENERAL PROPERTIES
TYPICAL ANALYSES
Impurities in ppm
ARSENIC POWDER, SHOT, PELLETS, & INGOT
Powder and pieces are pre-packaged in glass ampoules under dry argon.
ARSENIC COMPOUNDS
Compounds are packaged to order and sold by the gram or kilogram.
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