Determine the saponification value of a fat or oil, representing the amount of KOH required to saponify 1 gram of fat.
Titration Data
mL
mL
N
g
Saponification Analysis
Saponification Value140.25mg KOH/g
Predominantly Long Chain Fatty Acids
SV Comparison
Comparing your sample to common fats and oils.
About this calculator
Overview
Saponification value (SV) is the number of milligrams of potassium hydroxide (KOH) required to saponify one gram of fat or oil. Higher values indicate shorter fatty acid chains (lower molecular weight).
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Pro Tips
Use ethanolic KOH for better fat solubility during reflux.
Back-titrate with HCl using phenolphthalein indicator.
Perform a blank (B) to correct for reagent alkalinity.
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Fun Facts
"Coconut oil has a high SV because it contains many short-chain fatty acids like lauric acid."
"Oils with higher SV values require more lye to turn into soap."
"The SV is an inverse measure of the average molecular weight of all the fatty acids in the sample."
Formula: SV = \frac{(B - S) \times N \times 56.1}{W}
