Arsenic trioxide is the principal item of arsenic smelters. This oxide has immediate applications in marketplace—e.g., like a glass decolorizing agent. Other commercially practical organic and natural and inorganic arsenic derivatives are prepared from it. During the processing of As2O3 the oxide is Usually lessened withcarbon: 2As2O3+3C?→As4+3CO2 The reaction is http://https//chemscenter.com