反应详情

温度

25 °C

One mole of maleic anhydride is dissolved with stirring in 1000 ml methanol at 50°-60° C. The mixture is cooled to 25° C. and with the aid of a pH meter, the pH is adjusted to 8.6 with calcium hydroxide while maintaining the temperature below 25° C. with an ice bath. 149 g of calcium bis(methyl maleate) is recovered by crystallizing out of methanol followed by drying in a vacuum oven.

1. temperaturewhile maintaining the temperature below 25° C. with an ice bath
2. custom149 g of calcium bis(methyl maleate) is recovered
3. customby crystallizing out of methanol
4. customby drying in a vacuum oven