VOLHARD'S METHOD OF PRECIPITATION TITRATION

PIKAI PHARMACY -------------------------------------------------

This is about principle of precipitation titration using Volhard's method.

In the Volhard method chlorides are first precipitated with excess silver nitrate, then excess silver is titrated with potassium (or sodium) thiocyanate. To detect end point we use Fe3+ cations, which easily react with the thiocyanate, creating distinct wine red complex.
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