Sodium thiosulfate pentahydrate 99-101%, Puriss., meets analytical specification of BP, Ph. Eur., USP, Fluka™

Supplier: Honeywell Research Chemicals

13479-500G
BJ13479-500GEA 67.91 USD
BJ13479-500G
Sodium thiosulfate pentahydrate 99-101%, Puriss., meets analytical specification of BP, Ph. Eur., USP, Fluka™
Sodium thiosulphate pentahydrate
Formula: Na₂S₂O₃.5H₂O
MW: 248.19 g/mol
Boiling Pt: Decomposes on heating.
Melting Pt: 48 °C (dec.)
Density: 1.73 g/cm³ (20 °C)
Storage Temperature: Room Temperature
MDL Number: MFCD00149186
CAS Number: 10102-17-7

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Specification Test Results

Identity complying
Assay 99.0 - 101.0 %
Assay (calculated on the anhydrous basis) 99.0 - 100.5 %
Loss on drying (vacuum, 16 h) 32.0 - 37.0 %
pH (10 %, 20°C) 6.0 - 9.0
Arsenic (As) Max. 0.0003 %
Calcium (Ca) Max. 0.005 %
Iron (Fe) Max. 0.001 %
Heavy metals (as Pb) Max. 0.0005 %
Chloride (Cl) Max. 0.05 %
Sulfate and sulfite (as SO₄) Max. 0.2 %
Sulfide (S) complying
Appearance of the solution complying
Residual solvents complying

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