in neat (no solvent) argon atmosphere; org. compd. addn. to PCl4AlCl4 (cooling), reaction vessel connecting to vac. line (2 mm Hg), mixt. heating to 80°C, liquefaction; volatiles collection (trap cooled with liq. nitrogen);

in neat (no solvent) byproducts: Et4NIBr2; argon atmosphere; org. compd. addn. to PBr5 (cooling to -20°C), reaction vessel connecting to vac. line; PBr3 collection (trap cooled with liq. nitrogen);

benzene

in butanone Menshutkin reaction; 2 h; Heating;

silver nitrate in toluene T=25°C; Kinetics; Concentration;