Sodium thiosulfate pentahydrate 99.5% for analysis
Supplier: Thermo Scientific Chemicals
AC20285-0010
AC20285-0025
AC20285-0100
TS20285-0010EA
67
USD
TS20285-0010
TS20285-0025
TS20285-0100
Sodium thiosulfate pentahydrate 99.5% for analysis
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 |
Specification Test Results
Appearance | Transparent white Crystals |
Titration Iodimetric | 99.5 to 101.0 % |
pH | 6.0 to 8.4 (5 % at 25°C) |
Chloride (Cl) | ≤200 ppm |
SO4 and SO3 (as SO4) | ≤0.1 % |
Calcium (Ca) | ≤20 ppm |
Iron (Fe) | ≤5 ppm |
Potassium (K) | ≤50 ppm |
Sulfur (S) | ≤1 ppm |
Heavy metals (as Pb) | ≤5 ppm |
Insoluble matter | ≤0.005 % (in water) |
Nitrogen compounds (as N) | ≤0.002 % |
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