in tetrachloromethane; water Kinetics; aq. soln. containing hydrohalogenic acid and a dried ion-exchange resin are placed in a centrifuge tube, addn. of germanium compd., shaking gently for 24 h at 25°C; resin is sepd. by filteration and shaken with aq. NaOH for 24 h to elute the germanium compd.; the germanium compd. concens. in hydrohalogenic acid and the elute is determined with the ICAP-500;
参考文献
Bulletin of the Chemical Society of Japan, , vol. 64, # 11 p. 3363 - 3371
in neat (no solvent) Kinetics; heating powders at varying grinding duration, varying oxide layer thickness, varying temp., varying proprortions of Ge and CuCl; mechanism discussed;;
in neat (no solvent) heating 10 g GeO2 to dark red heat; passing a stream of Cl2CO over the GeO2, immediate reaction; GeCl4 is contaminated by Cl2; purification by an air stream; yield: 20 g of GeCl4;;
