Sodium thiosulphate pentahydrate 99.5-101.0% (by iodometry), crystals, BAKER ANALYZED® ACS, J.T.Baker®

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3946-01EA 20727.94 INR
3946-01 3946-07 3946-05 3946-R
Sodium thiosulphate pentahydrate 99.5-101.0% (by iodometry), crystals, BAKER ANALYZED® ACS, J.T.Baker®
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

Meets ACS Reagent Chemical Requirements
For Laboratory,Research,or Manufacturing Use 99.5 - 101.0 %
Assay (Na₂S₂O₃·5H₂O) (by iodometry) 99.5 - 101.0 %
Insoluble Matter ≤0.005 %
pH of 5% Solution at 25°C 6.0 - 8.4
Nitrogen Compounds (as N) ≤0.002 %
Sulfate and Sulfite (as SO₄) ≤0.1 %
Sulfide (S) Passes Test
Meets Reagent Specifications for testing USP/NF monographs

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