Ex-stock

Sodium Thiosulphate Pentahydrate

CAS 10102-17-7·Na₂S₂O₃·5H₂O

Hypo crystals for iodometric titration, and ready-standardised 0.1 N solution.

Grades offered

  • EXTRA PUREExtra PureThe general-purpose tier on most Indian catalogues.
  • ARAnalytical ReagentHigh purity with certified assay and stated trace-impurity limits.
  • AR/ACSAnalytical Reagent, ACS specificationAR grade additionally meeting American Chemical Society limits.
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Typical applications

  • Iodometric titration
  • Dissolved oxygen determination (Winkler method)
  • Dechlorination of samples
EXTRA PURE500 g

Sodium Thiosulphate Pentahydrate

Na₂S₂O₃·5H₂O · M.W. 248.18 g/mol

CAS
10102-17-7
Assay
≥ 99.5%
Batch
Use before
Representative label. Batch, expiry and the full hazard statement appear on the container and its Safety Data Sheet.

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Pack sizes

  • 500 g
  • 5 kg

Identification

Identification for Sodium Thiosulphate Pentahydrate
CAS number10102-17-7
Molecular formulaNa₂S₂O₃·5H₂O
Molecular weight248.18 g/mol
Assay≥ 99.5%
Also known asHypo, Sodium hyposulphite

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