Saponification / Acid Value

Calculate saponification value (mg KOH/g oil) or acid value from titration data.

Volume of HCl for blank (mL)

Volume of HCl for sample (mL)

Normality of HCl (N)

Mass of oil (g)

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mg KOH/g

Volume of KOH used (mL)

Normality of KOH (N)

Mass of oil (g)

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mg KOH/g

Saponification value = (V_blank – V_sample) × N_HCl × 56.1 / mass_oil

Acid value = (V_KOH × N_KOH × 56.1) / mass_oil

56.1 = molecular weight of KOH (mg/mmol).