Tungstic Acid

Grade WO3 (min%) Impurities (%,max)
Al Co Cu Mg Mn Ti
  90.00 0.001 0.001 0.001 0.001 0.001 0.001

Impurities (%,max)
Sb Sn V S P K Na Si Mo
0.001 0.001 0.001 0.005 0.005 0.005 0.006 0.006 0.02

Impurities  (%,max ) Apparent density(g/cm3) Igniting loss(%)
As Ni Fe Ca
0.015 0.002 0.003 0.01 0.5~1.0 <10(9)

Packing: In sealed double plastic bags with outer iron drums of 50kgs net each.