??? ? ??? ?? ??
??? ? ??? ??
?? ?? ?? ??? ? ??? ?? ≥ 99.5 %, ≥ 98.5 % ? ??? ?? ??? ??? ?? ???? ?? ??? ??.
?? :
| ?? | Na2WO4?2H2O(%) | ????/% | ?/% | ? |
| ?? | ≥97 | ≤0.5 | ≤15 | ??? |
ACS??
?? |
ACS??(ACS,99.0%-101.0%) |
?? |
99.0%-101.0% |
??? |
≤0.01% |
?? |
≤0.005% |
???? ? |
≤0.001% |
???? |
≤0.001% |
??? |
≤0.01% |
?? ??? |
≤0.02 meq |



