Abstract
The reaction of molecular chlorine with solid and liquid tin was studied by modulated-molecular-beam mass spectrometry and Auger electron spectrometry. The temperature range was 350-700 K and equivalent chlorine pressures between 2 x 10/sup -5/ and 5 x 10/sup -4/ Torr were used. At constant pressure, the production rate of the sole reaction product (SnCl/sub 2/) increased with temperature with no sign of a discontinuity at the melting point. The reaction was nonlinear with respect to chlorine equivalent pressure. The model developed for the lead-chlorine system was applicable to the tin-chlorine system. However, solution diffusion of chlorine in the liquid metal did not appear to be significant for the tin reaction. A comparison of all four metal-chlorine reactions studied in this series is presented.
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