Ammonium Metatungstate

Product Description
Ammonium Metatungstate (AMT), white crystallized powder or light yellow powder, molecular formula 5(NH4)6H2W12O40-XH2O, is basic raw material of W-base catalyzer in oil refinery, and is mainly used for petroleum industry.

Product Specification/Models
Ammonium Metatungstate(AMT)
Purity 99.90%, 99.95%
WO3 89.0%min
Impurities PCT Max Each
Grade AMT-1
Purity 99.95%
Al/As/Ca/Cr/Ca/Cu/Mg/Mn/Ni/P/Sb/Si/Ti/V 0.001,
Mo 0.005, Fe 0.002, Na/K 0.0015, Bi/Pb/Sn 0.0001, S 0.0005
Grade AMT-2
Purity 99.90%
Al/As/Cr/Mn/Ni/S 0.001, K/Na/Sb/Ti/V 0.002
Ca/Cu/Fe/P 0.003, Bi/Pb 0.0001, Sn 0.0003, Mo 0.01
Water Insoluble 0.5%max
PH Value 3.0-4.5

Application
It is basic raw material of W-base catalyzer in oil refinery, and is mainly used for petroleum industry.