AQUEOUS CHEMISTRY OF TIN(III). A FLASH PHOTOLYSIS STUDY

Abstract

Abstract Unstable Sn(III) was produced by ultraviolet irradiation of Sn(II) or Sn(IV) chloride complex in deaerated aqueous hydrochloric acid solution. The optical spectrum of the transient species, Sn(III), observed by using the technique of flash photolysis, has a absorption maximum at 280 nm in 1 mol dm−3 HCl and the lifetime is very short. The rate constant of Sn(III) oxidation with oxygen is 1.7×108 mol−1 dm3 s−1.