CAS No.: | 150-90-3 |
---|---|
Formula: | C4h4o4na2 |
EINECS: | 205-778-7 |
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Items | Specification |
Assay | ≥98% |
PH-value,5% water solution | 7-9 |
Arsenic(As2O3) | ≤2PPM |
Heavy metal (Pb) | ≤10PPM |
Sulphate (SO2-4) | ≤0.019% |
Potassium permanganate reducing substances | Qualified |
Drying loss (120℃, 3h) | ≤2% |