A colorless crystalline sound that is extremely toxic (0.1 g will be a lethal dose). Evaluation from the stable and vapor states indicates a dimerized structure of As4O6. In the processing of As2O3 the oxide is Generally minimized withcarbon: 2As2O3+3C?→As4+3CO2 The reaction is endothermic and is also completed at five http://https//chemscenter.com