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Sodium Metabisulfite
Na2S2O5 190.11
 Disulfurous acid, disodium salt;
 Disodium pyrosulfite [7681-57-4]

DEFINITION

Sodium Metabisulfite contains an amount of sodium metabisulfite (Na2S2O5) equivalent to NLT 65.0% and NMT 67.4% of SO2.

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