Naatrium Volfram sisu
Valem: Na2WO4 • 2H2O.2H2O
Loodus: valge kristalne pulber, rombikujuline, mineraalsed spinell structure.In kuiv õhk murenemine.
spesification:
Element |
puhtus |
klassⅠ |
klass Ⅱ |
Na2WO4.2H2O |
99 |
98 |
97 |
Mo |
0.001 |
0.02 |
-- |
AS |
0.001 |
0.001 |
0.001 |
Cu |
0.0005 |
0.001 |
0.001 |
Fe |
0.001 |
0.001 |
0.005 |
Si |
0.004 |
0.04 |
0.04 |
Water insoluble |
0.005 |
0.05 |
0.05 |
PH |
8.5-9 |
8.5-9 |
8.5-9 |