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en format PDF SODIUM DITHIONITE
CAS No. 7775-14-6
Chemical Formula Na2 O4 S2
Molecular Weight 174.10
CHARACTERISTICS
PARAMETERS SPECIFICATION
APPEARANCE White to Gray-White crystalline powder
Assay 85% or 88% or 90% min
INSOLUBLES IN WATER 0.1% max
Na2S2O3 1.2% max
Na2S2O5 5-7%
NaHSO3 0.5% max
Na2CO3 0.6-2%
HCOONa 0.5% max
Zn 0.0001% max
Pb 0.0001% max
Fe 0.005% max
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