ESTIMATION OF BISMUTH. PART I. GRAVIMETRIC ANALYSIS WITH PHENYLARSONIC ACID

Bismuth phenylarsonate is practically insoluble in water. It has been shown that it can be quantitatively precipitated at a pH (5.1-5.33) from a solution containing acetic acid buffered with sodium or ammonium acetate. Methods for the estimation and separation of bismuth from salts of thallium (ons), alkalis, alkaline earths (e.g., calcium strontium, barium, magnesium), copper, silver, lead, mercury, cadmium, cobalt, nickel, zirconium, thorium and tin as also in presence of sulphate ions have been described.