I read someplace also,....
.....SnCl4 needs hot tin and dry chlorine, and you condense and collect the SnCl4 vapours. Dry HCl might work too, I think, instead of chlorine.
...pop corn tin cans dissolves in hydrochloric acid to form stannous chloride, sncl2, and in aqua regia to form stannic chloride, sncl4, and it reacts with sodium hydroxide solution to form sodium stannite and hydrogen gas
....Tin, symbol Sn, metallic element that has been used by people since ancient times. Tin is in group 14
Tin forms stannic acid, H2SnO4, when heated in air or oxygen at high temperatures. It dissolves in hydrochloric acid to form stannous chloride, SnCl2, and in aqua regia to form stannic chloride, SnCl4, and it reacts with sodium hydroxide solution to form sodium stannite and hydrogen gas. In cold and very dilute nitric acid, tin dissolves to form stannous nitrate and ammonium nitrate; in concentrated nitric acid, it produces metastannic acid, H2SnO3. Stannous sulphide, SnS, is yielded as a dark brown precipitate by the action of hydrogen sulphide on a solution of stannous chloride. Stannic sulphide, SnS2, is produced by passing hydrogen sulphide through a solution of stannic salt. The two hydroxides of tin, Sn(OH)2 and Sn(OH)4, are produced by adding a soluble hydroxide to solutions of stannous and stannic salts. Stannous oxide, SnO, a black insoluble powder, is obtained by heating stannous oxalate in the absence of air. In the presence of air, stannous oxide burns to form the dioxide, or stannic oxide, SnO2, a white insoluble solid. The dioxide may also be prepared by heating stannic acid or by heating tin metal in air at high temperatures.
..... Sn + 2Cl2 --> SnCl4; Pb + Cl2 --> PbCl2
The O.N. of Sn & Pb in SnCl4 & PbCl2 are +4 & +2 respectively.
The principal reactions of Sn exhibit the group valency of 4 & thus the O.N. of Sn in its compound is +4. The Sn compounds with oxidation state of +4 are more stable than those of +2. Lead tends to form 2-valent compounds because of the inert pair effect of its 2 outer s-electrons. These compounds show the O.N. of +2 for Pb. They are more stable than those of +4 for Pb.
I hope this helps...........java