
英:/'eˌsterɪfɪˈkeɪ,ʃən/ 美:/'eˌsterəfəˈkeɪʃn/
n. 酯化(作用)
The esterification conversion was about 90%.
反应最终转化率可接近90%。
Ethanol is in alkyd esterification process to produce new ester.
就是乙醇在醇酸酯化过程中生成新的酯类。
The esterification rate is over 98% under the optimized conditions.
在此条件下脂肪酸甲酯化率达到98%以上。
The kinetics of esterification is discussed and kinetic equation set up.
探讨了酯化的动力学,并建立了动力学方程。
The esterification mechanism of unsaturated carboxylic acid was analyzed.
分析了不饱和羧酸酯化反应的机理。
Esterification(酯化反应)是羧酸(carboxylic acid)与醇(alcohol)在酸性条件下发生反应,生成酯(ester)和水的过程。该反应属于可逆的缩合反应,通常需要酸(如硫酸、盐酸)作为催化剂。以下从多个角度详细解释:
酯化反应的核心是羧酸的羟基(-OH)与醇的羟基之间脱去一分子水,形成酯键(-COO-)。其通用反应式为:
$$
text{RCOOH} + text{R'OH} rightleftharpoons text{RCOOR'} + text{H}_2text{O}
$$
例如,乙酸与乙醇反应生成************。
以费歇尔酯化反应(Fischer Esterification)为例,机理分为三步:
传统催化剂为浓硫酸,但也可用*********钠(NaHSO₄)或*********(SnCl₄)等替代,以减少腐蚀性副反应。
酯化反应的逆过程为水解反应(Hydrolysis),酯在酸性或碱性条件下分解为羧酸(或羧酸盐)和醇。
总结来看,酯化反应是有机合成中构建酯键的重要方法,广泛应用于材料、医药等领域。其可逆性要求通过移除水或使用过量反应物来提高产率。
Esterification(酯化)is a chemical process that occurs when an alcohol reacts with an organic acid to form an ester.
/ɛstərɪfɪˈkeɪʃən/
Noun
Esterification is commonly used in the production of perfumes, flavors, and biodiesel.
Esterification is a chemical reaction that involves the removal of a water molecule from an organic acid and an alcohol. The resulting product is an ester, which is a compound with a sweet, fruity odor. Esterification is an important process in organic chemistry, as it is used to produce a wide range of products, including fragrances, flavors, and biodiesel.
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