in tetrachloromethane; ethanol byproducts: NaCl; addn. of Ge compd. soln. (CCl4) to sodium dimethyl-dithioarsinate soln.(abs. ethanol) with stirring under N2, room temp.; keeping at 40-50°C with stirring, 1-2h; pptn. of NaCl; filtration; evapn.; pptn.; filtration; drying over P2O5 in vac.; elem. anal.;