saponification number

American  

noun

Chemistry.

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

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Etymology

Origin of saponification number

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 Paint Technology and Tests by Gardner, Henry A.

Specific gravity at 15° C., 0.940-0.962; optical rotation, slightly lævo-rotatory up to -4°; refractive index at 20° C., 1.485-1.490; saponification number, 100-115; soluble in 3 or 4 volumes of 70 per cent. alcohol.

From The Handbook of Soap Manufacture by Simmons, W. H.

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 Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. by Thomssen, E. G.

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 Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. by Thomssen, E. G.

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

From Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. by Thomssen, E. G.