Sodium thiosulfate pentahydrate 99+%, Extra Pure

Supplier: Thermo Scientific Chemicals

AC12337-0010 AC12337-0025 AC12337-0250
TS12337-0010EA 69 USD
TS12337-0010 TS12337-0025 TS12337-0250
Sodium thiosulfate pentahydrate 99+%, Extra Pure
Sodium thiosulphate pentahydrate
Formula: Na₂S₂O₃.5H₂O
MW: 248.19 g/mol
Melting Pt: 48.5 °C
Density: 1.72 g/cm³
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

Appearance Colorless to white Crystals
Titration Iodimetric 99.0 to 101.0 %
pH 6 to 8.4 (10 % at 20°C)
Chloride (Cl) ≤500 ppm
SO4 and SO3 (as SO4) ≤0.2 %
Calcium (Ca) ≤50 ppm
Iron (Fe) ≤10 ppm
Lead (Pb) ≤5 ppm
Sulfur (S) ≤5 ppm

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