The determination of the stability constants of the fluoride complexes of tin(II) using the fluoride electrode

Abstract

The stability constants for the fluoride complexes of tin(11) have been determined by e.m.f. measurements, over a range of temperature, using both a tin amalgam electrode and the recently available fluoride ion activity electrode. The significance of the values ΔG -11480 cal/mole, ΔH 10350 cal mole^-l, and ΔS 73.2 cal deg^-1 mole^-1 for the SnF₃^- complex is discussed and compared with those for the chloro and bromo complexes of tin(11).