SiO2 in neat (no solvent, gas phase) introduction of F2 stream into liquid SOF2 (-50°C); mixture (F2/SOF2) escapes into quartz tube (containing heated Pt net/150°C); pale red flame observed; abs. exclusion of air;; condensed (liquid air cooling); removal of F2 (water jet pump/-190°C); fractionated (quartz column);;
SiO2 in neat (no solvent, gas phase) introduction of F2 stream into liquid SOF2 (-50°C); mixture (F2/SOF2) escapes into quartz tube (containing heated Pt net/150°C); pale red flame observed; abs. exclusion of air;; condensed (liquid air cooling); removal of F2 (water jet pump/-190°C); fractionated (quartz column);;
