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Item | Standard | Result |
NaHSO2.CH2O.2H2O | ≥98.0% | 99.2% |
Solution | Clear or shight turbid | Slight turbid |
Appearance | White powder | White powder |
Cu content | / | / |
Mn content | / | / |
Solubility in benzene | Insoluble | Insoluble |






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