Copper bismuth vanadate

In this paper. We report the hydrothermal synthesis, structural characterization and ionic conductivity of a novel hydrated copper bismuth vanadate, Cu2Bi4V20i3 3H20 and its high temperature phase. 

Oxides Vanadates) bismuth vanadate (BiV04) chnobisvanite (BiV04) copper vanadate dreyerite (BiV04) lead vanadate (Pb5(V04)3Cl) pucherite (BiV04) vanadinite (Pb5(V04)3Cl). 

H. 8-Hydroxyquinaldine (XI). The reactions of 8-hydroxyquinaldine are, in general, similar to 8-hydroxyquinoline described under (C) above, but unlike the latter it does not produce an insoluble complex with aluminium. In acetic acid-acetate solution precipitates are formed with bismuth, cadmium, copper, iron(II) and iron(III), chromium, manganese, nickel, silver, zinc, titanium (Ti02 + ), molybdate, tungstate, and vanadate. The same ions are precipitated in ammoniacal solution with the exception of molybdate, tungstate, and vanadate, but with the addition of lead, calcium, strontium, and magnesium aluminium is not precipitated, but tartrate must be added to prevent the separation of aluminium hydroxide. 

Chromiimi(lI) and titanium(II[I) are very powerful reducing agents, but they are readily air-oxidized and difficult to handle. The standard potential of the former is -0.41 V (Cr3+/Cr2+) and that of the latter is 0.04 V (TiO"+/Ti +). The oxidized forms of copper, iron, silver, gold, bismuth, uranium, tungsten, and other metals have been titrated with chromium(II). The principal use of Ti " " is in the titration of iron(in) as well as copper(II), tin(IV), chromate, vanadate, and chlorate. 

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