the relative toxicity of gallium arsenide ( gaas ) and its metal oxides was assessed by intratracheally instilling particulate suspensions of gaas ( 100 mg/kg ) , equimolar gallium as ga2o3 ( 65 mg/kg ) , or a maximally tolerated nonlethal dose of arsenic as as2o3 ( 17 mg/kg ) .
C0003818
arsenic
C0052416
as2o3