Note 818 — PART IX.—INORGANIC POISONS. (continued 2)

By adding chloride of tin to a solution of chloride of antimony in sufficient quantity, and passing SO2 through the liquid, the whole of the antimony can be thrown down as sulphide, whilst the tin remains in solution. Thus,—

9SnCl₂ + 2SbCl₃ + 3SO₂ + 12ClH = Sb₂S₃ + 9SnCl₄ + 6OH₂.

—Federow, Zeitschrift für Chemie, 1869, p. 16.