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ANALYSIS OF SODIUM SULFITE

   
Chemical Formula Na2SO3
Specification  
Na2SO3 97.5 %
SO2 49 %
Thiosulfate (as S2O32-) 0.015
PH value (10% solution) 10.5
Heavy metal as Pb 10 >
Arsenic 0.3 >
Selenium 0.2 >
Iron 10 >
Insoluble matter 0.05
Na2SO4 Remainder

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