Water content in organic solvents

The water content determination in organic compounds is based on the reaction described by R. W. Bunsen

 I₂ + SO₂ + 2 H₂O → 2 HI + H₂SO₄

Karl Fischer discovered that this reaction could be used for water determinations in a nonaqueous system containing an excess of sulfur dioxide with methanol as a solvent

Reaction:

CH₃OH + SO₂ + 3 RN + I₂ + H₂O →(RNH)•SO₄CH₃ + 2 (RNH)I

Karl Fischer titration method is increasingly in demand for Water determination of products ,worldwide. It is  a reliable technique and is transparent and comparable.

This application is used to determine the water content in organic raw materials and solvents by volumetric Karl Fischer titration, including ketones and aldehydes.