arsenic mineral;  arsenious anhydride
 arsenious acid;  arsenous acid (H3AsO3);  arsenic trioxide;  white arsenic (As2O3)
 arsenicals (drugs containing arsenic)
 arsenic trioxide;  white arsenic (As2O3);  arsenic pentoxide (As2O5)
 arsenopyrite;  mispickel;  arsenical pyrite
 gallium arsenide semiconductor
 arsenic trioxide;  white arsenic (As2O3)
 Gallium Arsenide Phosphide;  GaAsP