In Situ 119Sn Conversion Electron Mössbauer Study of the Surface of Tin Layers as Deposited by an Electroless Process

Abstract

In situ ¹¹⁹Sn conversion electron Mössbauer spectroscopy has been used to investigate the process of autocatalytic (electroless) tin deposition in a strong alkaline solution using a rotating disk. It is very likely that a tin(II) compound—probably some tin(II) hydroxide complex—is present at the surface during the Sn‐metal depositing disproportionation reaction. The results obtained in a tin(II) solution with a pH of 6.1 indicate the presence at the surface of what is probably a tin(II) chloride compound.