Ammonium metavanadate

1.Name: Ammonium metavanadate Molecular formula: NH4VO32.Ammonium metavanadate is white or slightly yellow crystalline powder; CAS NO. 7803-55-6; Molecular weight is 116.98; Relative density is 2.326; Melting point 200 ℃; If burned , it become V2O5.3.Usage: Mainly used as a chemical reagent, catalyst, the driers, mordant, also widely used as a glaze ceramic industry, can further be used for production of vanadium oxide4.The content of V2O5 is 99.5% or 99%5.Technical indicators 210℃-650℃ burn the ammonium metavanadate, and test the final powder according to GB619-77, the result is:V2O5 99.5 volumetric methodSiO2 0.11 colorimetric methodS 0.01 combustion iodometric methodK2O 0.002 AASCaO 0.004 ICPNa2O 0.004 AASAs < 0.001 ICP MgO < 0.005 ICP Ni < 0.001 ICP Mo 0.002 ICPFe2O3 0.002 ICPAl2O3 0.004 ICP
Ammonium metavanadate