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