Sodium thiosulphate pentahydrate ≥98.5%, pure , pH 6.0 - 7.5 (100 g/l, H₂O, 20 °C), SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
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About this item
CAS Number:10102-17-7
:
Formula:Na₂S₂O₃.5H₂O
MDL Number:MFCD00149186
:248.19 g/mol
Merck Index:12,08844
Melting Pt:48 °C
Density:1.67 g/cm³ (20 °C)
Storage Temperature:Ambient
EINECS:231-867-5
Specification Test Results
- Assay (iodometric):≥ 98.5 %
- Identity:passes test
- pH-value (10 %; water):6.0 - 9.0
- Sulfate and sulphite (as SO₄):≤ 0.6 %
- Ca (Calcium) and Mg (Magnesium):≤ 0.2 %
- Fe (Iron):≤ 0.005 %
- Water:32.0 - 38.0 %
Specification Test Results
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Sodium thiosulphate pentahydrate ≥98%, purified
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