| Parastannyl Chloride, Sn5O9Cl2.2H2O, is produced by acting on parastannic acid with concentrated hydrochloric acid, dissolving the product in water, and precipitating the opalescent solution thus produced with more acid; the precipitate is then dried in a vacuum. This chloride is also formed in solution when a hydrochloric acid solution of β-stannyl chloride is warmed. |