saponification number

noun

, Chemistry.

1. the number of milligrams of potassium hydroxide required to saponify one gram of a given ester, especially a glyceride.

Word History and Origins

Origin of saponification number¹

First recorded in 1895–1900; saponi(fy) + -fication

Example Sentences

These oils vary in their saponification number from 10 to 60, while their unsaponifiable value averages about 80.

From Project Gutenberg

For a more exact expression of the free acid in a given fat, the committee recommends that the ratio of acid number to saponification number be used.

From Project Gutenberg

These are the iodine number, the acetyl value, saponification number, Reichert-Meissl number for volatile acids, Hehner number for insoluble acids.

From Project Gutenberg

To increase the hydrolysis a catalyzer, some neutral salt, usually manganese sulfate is added in the proportion of 0.15 per cent. appears to vary directly as the saponification number of the fat or oil.

From Project Gutenberg

From his examination of this oil he reported these constants: d24–5, 0.942; refraction at 25°, 81.5; solidifying point, 6° to 5°; melting point, 8° to 9°; saponification number, 177.5; esterification number, 166.7; acid number, 6.2; acetyl number, 0; iodin number, 84.5 to 86.3.

From Project Gutenberg