” Some arsenic trioxide finds its way into the air. Condensation on the vapors on the surface area at temperatures higher than 250° C forms the glassy modification, which slowly but surely adjustments on the crystalline, monoclinic sort. From the processing of As2O3 the oxide is Ordinarily decreased withcarbon: 2As2O3+3C?→As4+3CO2 https://quentinr012dca2.wikilowdown.com/user