产品规格︰
钨酸钠 Na2WO4.2H2O
指标名称 指标%
优 精制品 粗制品
WO3 ≥69.0 ≥69.0 ≥68.0
Mo ≤0.02 ≤0.02 ≤0.04
As ≤0.001 ≤0.002
Cu ≤0.0002
Fe ≤0.001 ≤0.002
SO4 ≤0.02 0.01
Si ≤0.004 ≤0.04
水不溶物 ≤0.005 ≤0.01
PH 8.5-9 8.5-9
金属(Pb) ≤0.001 ≤0.002
Cl ≤0.03
