Preparation of tin tetrachloride
150 g pure granulated tin are heated to fusion on the gas stove in a mounted, tubulated retort, and a strong stream of dry chlorine led into it through a glass tube opening near the surface of the fused metal. The retort connects with a very long condenser and two Woulff bottles as receivers.
The receivers are placed in ice-water, to hasten the condensation of the very volatile chloride. The obtained tin tetrachloride is purified by fractional distillation. The distillation flask should contain a little tinfoil in order to combine free chlorine during the rectification. Anhydrous stannic chloride is a colorless solution, boiling at 114° C, fuming strongly when exposed to air, d=2.27 g/ml at 0° C.
Laboratory manual of inorganic preparations, by H. T. Vulte, 127-128, 1895