Bil3 Bismuth iodide

Bil3 Bismuth(III) iodide, 4 114 2Bi(N03)3-3Mg(N03)2-24H20 Bismuth magnesium nitrate, 2 57 BrF Bromine (I) fluoride, 3 185 BrF3 Bromine(III) fluoride, 3 184 BrF5 Bromine (V) fluoride, 3 185 BrH Hydrobromic acid, 1 151, 152, 155... 

Bismuth iodide Bil3 7.71 10- Copper(I) cyanide CuCN 3.47 10-5°... 

Determination of bismuth as oxyiodide Discussion. The cold bismuth solution, weakly acid with nitric acid, is treated with an excess of potassium iodide when Bil3 and some K[BiI4] are formed ... 

The open end of the reaction tube is attached to an oil pump through a dust trap, and dry nitrogen is admitted at a rate such that the pressure is maintained at or below 25 mm. The bismuth(III) iodide is sublimed into the receiver end of the tube by heating with the spread burner flame and with an auxiliary Tirrill burner adjusted to maximum heat. Satisfactory progress of the sublimation is indicated by the persistence of yellowish-brown bis-muth(III) iodide vapors and by the absence of the violet color of iodine vapor. When the sublimation is complete, the tube is allowed to cool to room temperature in nitrogen at atmospheric pressure. The product is scraped from the receiver section of the tube and stored out of contact with the atmosphere. The yield is 72% based on bismuth. Anal. Calcd. for Bil3 Bi, 35.44. Found Bi, 35.42. The same result is found upon analysis of a resublimed sample of this product. 

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