Content (Na2S2O5 dollars)% :99.
Iron (Fe)% :0.0005.
White or yellow crystalline powder or small crystals.
Content (Na2S2O5 dollars)% :99.
Iron (Fe)% ≤0.0005.
Heavy metal (pb)% 0.001.
Arsenic (As )% ≤ 0.0002.
We are the sodium sulfite professional manufacturers.
Company also produces anhydrous sodium sulfite, sodium sulfite heptahydrate and sodium bisulfite.
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