Titrimetric Determination of Esters

NaOH concentration (mol/L) NaOH volume added (mL) HCl concentration (mol/L) Blank back-titration (mL) Sample back-titration (mL) Analyzed sample volume (mL) Sample ABV (%)

Calculated ester (mg/dm³ absolute alcohol) Your standard's limit (mg/dm³)

Enter your own limit — verify the exact figures for your specific standard separately as needed.

Expected ester (mg/dm³, approx.) Sample volume (mL) Target titration difference (mL, ~0.3-1)

Result

Ester mass in sample—

Concentration in sample—

Concentration in absolute alcohol—

% of added NaOH consumed by ester—

Calculated as ethyl acetate equivalent (M=88.11 g/mol) — assumes free acidity has already been separately neutralized. The NaOH data is for reference/verification only — the core formula uses only HCl and the titration difference (NaOH mathematically cancels in the blank-sample subtraction).

Result

Status—

Margin from limit—

Result

Recommended HCl concentration—