Sodium thiosulphate pentahydrate ≥98.5%, pure , pH 6.0 - 7.5 (100 g/l, H₂O, 20 °C), SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

1.06513.9050EA 0 EUR
1.06513.9050 1.06513.2500
Sodium thiosulphate pentahydrate ≥98.5%, pure , pH 6.0 - 7.5 (100 g/l, H₂O, 20 °C), SAFC®
Sodium thiosulphate pentahydrate
Formula: Na₂S₂O₃.5H₂O
MW: 248,19 g/mol
Melting Pt: 48 °C
Density: 1,67 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00149186
CAS Number: 10102-17-7
EINECS: 231-867-5
Merck Index: 12,08844

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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 %

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