tungsten products Description

Blue Tungsten Oxide Product Specification: Blue Tungsten Oxide Grade No.1 (WO3): W% (Min) 79%-80% Al:0.0005%,As:0.001%,Bi:0.0001%,Ca:0.001%,Co:0.001%,Cr:0.001%,Cu:0.0005%,Fe:0.001%, K:0.001%,Mn:0.0005%,Mg:0.0007%,Mo:0.003%,Na:0.001%,Ni:0.0005%,P:0.0007%,Pb:0.0001%, S:0.0007%,Sb:0.0003%,Si:0.001%,Sn:0.0001%,Ti:0.001%,V:0.001%,NH3:0.15%. Grade No.2 (WO3): W% (Min) 79%-80% Al:0.001%,As:0.002%,Bi:0.0001%,Ca:0.002%,Co:0.001%,Cr:0.001%,Cu:0.0007%,Fe:0.003%, K:0.001%,Mn:0.001%,Mg:0.001%,Mo:0.008%,Na:0.002%,Ni:0.0005%,P:0.001%,Pb:0.0001%, S:0.0007%,Sb:0.0005%,Si:0.002%,Sn:0.0007%,Ti:0.001%,V:0.001%,NH3:0.20%.