Arsenic tribromide fluoride

Arsenic Trifluoride, AsF3, is formed when fluorine reacts with arsenic trichloride 1 or with the arsenides of the alkali or alkaline earth metals 2 by the action of anhydrous hydrofluoric acid or of acid fluorides on arsenious oxide 3 by the action of certain metallic fluorides, for example silver or lead fluoride on arsenic trichloride,4 or of ammonium fluoride on arsenic tribromide B and by the action of iodine pentafluoride on arsenic.6... 

Metal Halides. Reacts explosively or violently with the following calcium bromide iron(III) bromide or chloride iron(II) bromide or iodide cobalt(II) chloride silver fluoride all four mercury(II) halides copper(I) chloride, bromide or iodide copper(II) chloride and bromide ammonium tetrachlorocuprate zinc and cadmium chlorides, bromides, and iodides aluminum fluoride, chloride, and bromide thallium bromide tin(II) or (IV) chloride tin(IV) iodide arsenic trichloride and triiodide antimony and bismuth trichlorides, tribromides, and triiodides vanadium(V) chloride chromium(IV) chloride manganese(II) and iron(II) chlorides and nickel chloride, bromide, and iodide.17,22"25... 

Phosphorus Trifluoride, PF3.—Some early indications were obtained that phosphorus reacted with fluorides of zinc and lead,1,2 and that the fluoride resulting was a gas.3 This gas was prepared in 1884 by heating lead fluoride with copper phosphide in a brass tube.4 It is also produced by the action of fluorides of zinc, silver or lead on phosphorus trichloride or tribromide.5 One of the most convenient methods of preparation is by the reaction between arsenic trifluoride, which is easily prepared and purified, and phosphorus trichloride, thus —... 

Phosphorus tribromide is also suitable as a starting material and zinc fluoride has been used as a,n alternative source of fluorine (188). Arsenic trifluoride is prepared from As406 and HF, produced from CaF2 and concentrated sulfuric acid (191). 

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