???????? ????????? ??????? ??????
??????? ??????????????? ??????
???? ?????? purity≥ 99.5?? ???? ??????? purity≥98.5?? ???????? ????? ?????? ????? ?? ??????? ????????.
??????? ??????:
| ??? | Na2WO4?2H2O（%） | ??????? /? | ??????? /? | Color |
| ????? | ≥97 | ≤0.5 | ≤15 | White |
ACS ????
???? |
ACS, 99.0%-101.0% |
???? |
99.0%-101.0% |
??????? ??? ????? ??????? |
≤0.01% |
Cl |
≤0.005% |
??????? ??????? ??????? (???????) |
≤0.001% |
Mo |
≤0.001% |
SO4 |
≤0.01% |
????? ???????? |
≤0.02 meq |
???????? ??? ?????:
?????? ??? ????? ???????? ????????? ?? WO2.72 (?? W18O49) ? ????? ?? ????? ?? ????? ???????? ? VTO ???????? ? ?? ????? ????? ??? ????????? ? ????? ????????? ?? ????????? ????????? ?????.
? ???????? ?? ????? ?????. ?????? ????? ??????????? ?????????? ??????? ??? ???? ????? ?????? ???? 600 ° C. ????? ?WO3? ???????? (VI) ?????? ??? ????? ??? ????? ????? ?? ?? ?? ??????????? ????? ?? ???????? ?????? ?????? ?????? ?????? ???? ?????. ?? ????? ???? ?? ????? ????? ???????? ?? ?? ??? ?? ??????? ?? ??? ??? ??????? ???????? ??????.
??? ?????????? ??? ????? ??????? ?? ???? ????? ????????? WO3. ???? ???? ???????????? ?? WO3.H2O? ??? ??????? ???? WO3.2H2O ????? ????????. ?????? ?????? ?????? ?????? ?? WO3.H2O ?? ????? ?? WO5 ????? octahedrally (H2O) ????? 4 ??? ????? ?? shared.the .
0.6um ???? ????? ???????? ? ?????? ???????? ? ????? ????? ???? ?????? ? ?????? ?? ???? ????? ?????? ? ?????? ????? ?? 0.6-1.0g / cm3 .