反应 #1797484

反应方程式

phthalic acid

KOH

→

Mono-n-butylphthalic Acid

溶剂

n-butyl alcohol

反应条件

后处理

1. 1
   其他equipped with stirring blades
2. 2
   温度thermometer and Dimroth condenser, heated
3. 3
   温度raised to a temperature of 130° C., which
4. 4
   温度was maintained for 2 hours
5. 5
   温度The mixture was subsequently cooled to 60° C

实验过程

148.2 g of anhydrous phthalic acid and 1.05 times the molar equivalent 77.8 g of n-butyl alcohol were added to a 500 ml glass round-bottomed flask equipped with stirring blades, thermometer and Dimroth condenser, heated while slowly stirring, and after the generated heat at about 90° C. wore off, raised to a temperature of 130° C., which was maintained for 2 hours. The mixture was subsequently cooled to 60° C. The acid value (number of mg of KOH necessary to neutralize 1 g of a sample) of the reaction solution was 253.8. Since the acid value for the case where the reaction is 100% complete is 248.4, the reaction rate was computed to be 98%.

来源