Beryllium metavanadate, Be(VO3)2.4H2O, is obtained as yellow crystals by boiling equimolecular quantities of beryllium hydroxide and vanadium pentoxide with water, filtering, concentrating, and pouring into a large volume of 95 per cent, alcohol. It dissolves readily in hot water and in pyridine. One thousand parts of cold water dissolve 1 part of it, and it is practically insoluble in chloroform, ether, and absolute alcohol. It crystallises in cubes modified by octahedra.
No other definite vanadates have been prepared. |