Silver pyrovanadate

Silver pyrovanadate gives esters of pyrovanadic acid only with the higher alkyl halides, e.g. amyl pyrovanadate, (C5H11)4Va07.a... 

Silver Pyrovanadate, Ag4V207, is obtained as a dense yellow precipitate by the addition of neutral silver nitrate to sodium pyrovanadate solution. It has also been obtained as brilliant yellow, transparent plates.9 M.pt. 383° C.1 ... 

The gravimetric estimation of vanadium in alkaline vanadate solutions has also been effected by precipitating as ammonium metavanadate in the presence of ammonium chloride.6 Precipitation is incomplete, however, unless the solution is quite saturated with ammonium chloride 7 the addition of alcohol is recommended.8 Other gravimetric processes which have been investigated include the precipitation of barium pyrovanadate,9 precipitation of silver metavanadate,10 precipitation of manganese pyrovanadate,11 and the use of cupferron.12... 

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See also in sourсe #XX -- [ ]

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