
英:/'eˌsterɪfɪˈkeɪ,ʃən/ 美:/'eˌsterəfəˈkeɪʃn/
n. 酯化(作用)
The esterification conversion was about 90%.
反應最終轉化率可接近90%。
Ethanol is in alkyd esterification process to produce new ester.
就是乙醇在醇酸酯化過程中生成新的酯類。
The esterification rate is over 98% under the optimized conditions.
在此條件下脂肪酸甲酯化率達到98%以上。
The kinetics of esterification is discussed and kinetic equation set up.
探讨了酯化的動力學,并建立了動力學方程。
The esterification mechanism of unsaturated carboxylic acid was analyzed.
分析了不飽和羧酸酯化反應的機理。
Esterification(酯化反應)是羧酸(carboxylic acid)與醇(alcohol)在酸性條件下發生反應,生成酯(ester)和水的過程。該反應屬于可逆的縮合反應,通常需要酸(如硫酸、鹽酸)作為催化劑。以下從多個角度詳細解釋:
酯化反應的核心是羧酸的羟基(-OH)與醇的羟基之間脫去一分子水,形成酯鍵(-COO-)。其通用反應式為:
$$
text{RCOOH} + text{R'OH} rightleftharpoons text{RCOOR'} + text{H}_2text{O}
$$
例如,乙酸與乙醇反應生成************。
以費歇爾酯化反應(Fischer Esterification)為例,機理分為三步:
傳統催化劑為濃硫酸,但也可用*********鈉(NaHSO₄)或*********(SnCl₄)等替代,以減少腐蝕性副反應。
酯化反應的逆過程為水解反應(Hydrolysis),酯在酸性或堿性條件下分解為羧酸(或羧酸鹽)和醇。
總結來看,酯化反應是有機合成中構建酯鍵的重要方法,廣泛應用于材料、醫藥等領域。其可逆性要求通過移除水或使用過量反應物來提高産率。
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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