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Chemistry

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Sodium thiosulfate

Molecular formula: Na2S2O3.5H2O

Molecular weight: 248.18

Appearance: monoclinic white crystals.

Na2S2O3 % ≥ 99.0%
Clarifying degree test pass
PH(50g/L,25°C) 6.0-7.5
Water insoluble substances % ≤ 0.005
Chloride(Cl) % ≤ 0.O2
Sulfide(S)% ≤ 0.00025
Ca % ≤ 0.007
Mg % ≤ 0.001
Fe % ≤ 0.0005
sulfate and Sulfite(SO4)% ≤ 0.05

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