Carbon dioxide Cyanogen iodide

I 3 gm. silver fluoride is powdered in a mortar with 1-5 gm. cyanogen iodide and transferred to a Jena glass tube about 50 cm. long and 2-5 cm. diameter. After evacuating the tube it is sealed off in the blowpipe and then heated in a furnace to 220° C. for 2 hours. After cooling, the tube is immersed in hquid air and the products allowed to condense. The tube is then opened and the contents distilled at — 70° C. in a freezing mixture of acetone and carbon dioxide. Yield 20-25% (Cosslett). 

Solubility. —White phosphorus is almost insoluble in water. It dissolves easily in liquid ammonia, sulphur dioxide and cyanogen, also in such compounds as phosphorus trichloride which mix with typical organic solvents. It is moderately soluble in fatty oils, also in hydrocarbons, alcohols, ethers, halogenated hydrocarbons such as chloroform and especially methylene iodide. One of the best solvents for phosphorus, as for sulphur, is carbon disulphide, which seems to dissolve it in all proportions at ordinary temperatures a solution has even... 

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