APPEARANCE:Tungstic Acid is light yellow, with color uniform. Product dose not have impurities that are visible to the naked eyes.
PHYSICAL PROPERTIES:Tungstic Acid can through 20 to 80 screens, its density is 0.5-1.0g/cm3.
PACKING:In Steel Drums with two tightly enclosed polyethynen-lined plastic bags, and package can adjusted to client's requirements.
|
Grade |
H2WO4-0 |
H2WO4-1 |
H2WO4-2 |
|
|
WO3(≥%) |
91.0 |
90.0 |
85.0 |
|
|
Impurity content not more than(%) |
Element |
Max |
Max |
|
|
Al |
0.001 |
0.001 |
0.001 |
|
|
As |
0.010 |
0.015 |
0.020 |
|
|
Bi |
0.001 |
0.001 |
0.001 |
|
|
Ca |
0.006 |
0.008 |
0.010 |
|
|
Co |
0.001 |
0.001 |
0.001 |
|
|
Cr |
0.001 |
0.001 |
0.001 |
|
|
Cu |
0.001 |
0.001 |
0.001 |
|
|
Fe |
0.003 |
0.003 |
0.004 |
|
|
K |
0.001 |
0.002 |
0.003 |
|
|
Mg |
0.001 |
0.001 |
0.001 |
|
|
Mn |
0.001 |
0.001 |
0.001 |
|
|
Mo |
0.015 |
0.020 |
0.030 |
|
|
Na |
0.004 |
0.005 |
0.005 |
|
|
Ni |
0.001 |
0.001 |
0.001 |
|
|
P |
0.002 |
0.003 |
0.005 |
|
|
Pb |
0.001 |
0.001 |
0.001 |
|
|
S |
0.005 |
0.005 |
0.010 |
|
|
Sb |
0.001 |
0.001 |
0.001 |
|
|
Si |
0.004 |
0.005 |
0.010 |
|
|
Sn |
0.001 |
0.001 |
0.001 |
|
|
Ti |
0.001 |
0.001 |
0.001 |
|
|
V |
0.001 |
0.001 |
0.001 |
|
