pH and power oscillations in the carbonylation of phenylacetylene in methanol-water mixtures with 0-40% water at 30 degrees Celsius

Heater power, Qr and pH data recorded with time during the carbonylation of phenylacetylene in methanol-water mixtures with water content from 0-40% at 30 degrees Celsius. The experiments were conducted in an HEL Simular reaction calorimeter using power compensation calorimetry. Oscillations in pH and heater power were recorded with the regular oscillations in pH becoming more stepwise as the water concentration increased.

在甲醇-水混合物中，于30摄氏度下对苯乙炔进行羰化反应的过程中，记录了加热功率、Qr值以及pH值随时间的变化数据，其中水含量范围在0-40%之间。实验采用HEL模拟反应量热仪，并运用功率补偿量热法进行。随着水浓度的增加，pH值和加热功率的波动逐渐呈现出更为阶梯化的特征。