Na2S2O3·5H2O
M.W: 248,21 CAS: 10102-17-7 EC: 231-867-5
P: P102-P202
- Appearance Colourless crystals
- Assay 99 – 101%
- Iron (Fe) ≤ 0.001%
- Substances insoluble in water (H2O) ≤ 0.01%
- pH (5% water, 20°C) 6 – 7.5
- Sulfates and Sulfites (SO4) ≤ 0.1%
- Sulfur (S) ≤ 0.0005%
- Heavy metals (Pb) ≤ 0.001%
- Calcium (Ca) ≤ 0.005%
- Potassium (K) ≤ 0.01%
- Magnesium (Mg) ≤ 0.005%
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