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trolyte a method of determining total tin and antimony from their sulfides or chlorides is provided. .?. Ammonium., Sodium and Potussiuni Tartrates and Tartaric Acid,The results for a completely quantitative deposition of antimony were negative. A certain amount of antimony always remains in solution. .; Calcium .Sulfide.--Of the alkaline earth sulfides, that of calcium was shown to be best suited for the deposition of antimony. The deposits were made most successfully- with rotating anodes and were of a brilliant platinum-like appearance under suitable conditions. The possibilitv of the separation of antimony from tin by the precipitation of the tin as stannic hydroxide and the electrolysis of the antimony from the latter in a solution of calcium sulfide was demonstrated. i . s i v r ? w I n ' O F PEBXSYLVANIA.
SOME COLLOIDAL SOLUTIONS DERIVED FROM HYDRATED ALUMINA. $3)
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