why sre you used Potassium hydrogen phthalate in
standarisation of 1N NaOH and 0.1 N Perchloric Acid?
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Answer Posted / Sunil Kumar Jayasawal
Potassium hydrogen phthalate (KHP) is used as a primary standard for the volumetric analysis of strong acids and strong bases because it has the advantage of being stable, nonhygroscopic, and easy to handle. It is less expensive than other primary standards such as sodium benzoate or potassium oxalate. When used in the standardization of 1N NaOH and 0.1 N Perchloric Acid, KHP acts as a reference compound to determine the concentration of the unknown solution.
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