Sodium thiosulphate pentahydrate 99.5-101.0%, crystals, AR®, Macron Fine Chemicals™

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8100-06EA 0 INR
8100-06 8100-20 MACR8100-04
Sodium thiosulphate pentahydrate 99.5-101.0%, crystals, AR®, Macron Fine Chemicals™
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

For Laboratory,Research,or Manufacturing Use 99.5 - 101.0 %
Assay (Na₂S₂O₃·5H₂O) 99.5 - 101.0 %
Appearance (colorless, transparent crystals) Passes Test
Insoluble Matter ≤0.005 %
Nitrogen Compounds (as N) ≤0.002 %
pH of 5% Solution at 25°C 6.0 - 8.4
Solubility Passes Test
Sulfate and Sulfite (as SO₄) ≤0.1 %
Sulfide (S) Passes Test
Water (H₂O)(by Karl Fischer titrn), For Information Only

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