…The presence of hydrogen ions also accelerates the process, but alkali neutralizes the carboxylic acids produced and breaks the equilibrium, making it much more advantageous in practice. The number of milligrams of potassium hydroxide (KOH) required to saponify 1 gram of fat or oil or wax is called the saponification value. The value is lower for fats and oils that contain components that are difficult to saponify, such as high molecular weight glycerides, higher alcohols, and hydrocarbons. … *Some of the terminology explanations that mention "saponification value" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…水素イオンの存在によっても促進されるが,アルカリのほうが生じたカルボン酸を中和して平衡を破る働きがあり,はるかに促進作用が大きいので実用的には有利である。 油脂あるいは蠟1gをケン化するのに要する水酸化カリウムKOHのmg数をケン化価saponification valueという。高分子量のグリセリドや,高級アルコール,炭化水素などのケン化されにくい成分を含む油脂ほど低い値をとる。… ※「saponification value」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
>>: šāpiṭu (English spelling) sapitu
〘Noun〙 ("Me" is the Go-on pronunciation ...
The southernmost cape on the island of Taiwan. It...
Born December 25, 1867 in Breslau (now Wrocław, Po...
[ I ] 1-amino and 2-aminoanthraquinone. C 14 H 9 ...
Also called "Shiripa" or "Shiriba.&...
Mutsu Mutsu Country and Dewa See you A country in...
These paper dolls are made with crepe paper in a ...
In Greek mythology, she was a sea nymph and one o...
A beautiful pale green-blue mineral, it is one of...
① = Ujigami (private deity) ①※Konpira Honpeiji (ar...
…(4) In Shishi Kagura, the lion's head is wor...
This was one of the measures to raise the Ainu pe...
…In his symphonies, as shown by the examples of “...
A national labor union whose members were workers...
A town in the Gard department in the south of Fran...