saponification 就係
fat/oil + sodium hydroxide --> glycerol + soap
我想問如果 fat/oil + acid 又會 form d 咩??
係咪會 form fatty acid??
如果係, 條 chemical and word equation 應該點寫?
thanks
chem ... soap question
2009-04-22 9:18 pm
回答 (2)
2009-04-23 1:50 am
✔ 最佳答案
The answer is as follows:圖片參考：http://i320.photobucket.com/albums/nn347/old-master/090422_1.jpg?t=1240393767
2009-04-22 10:31 pm
Saponification is fat or oil first breaking down to fatty acid then neutralize by sodium hydroxide.
(C17H35COO)3C3H5 + 3H2O+heat+catalyst+pressure+steam--------> 3C17H35COOH(stearic acid) + C3H5(OH)3(glycerine)
Fatty acid + NaOH------>C17H35COONa(soap) + H2O
Therefore it is a acid base neutralization , so if use acid to react with fatty acid, no soap will be formed.
(C17H35COO)3C3H5 + 3H2O+heat+catalyst+pressure+steam--------> 3C17H35COOH(stearic acid) + C3H5(OH)3(glycerine)
Fatty acid + NaOH------>C17H35COONa(soap) + H2O
Therefore it is a acid base neutralization , so if use acid to react with fatty acid, no soap will be formed.
收錄日期: 2021-04-13 16:34:42
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090422000051KK00533