在反应混合物中存在不同的数量甲醇的条件下,苯酚在60℃或20℃下与甲醛起反应。表观速度常数和活化能可用修正的二级方程计算,其与由整个反应期的试验得到的数值相吻合,甲醇降低了反应的速度,然而,活化能受甲醇浓度的影响不显著。 Phenol is reacted with formaldehyde at 60 ° C or 20 ° C in the presence of different amounts of methanol in the reaction mixture. Apparent velocity constants and activation energies can be calculated using a modified second-order equation that agrees well with the values ​​obtained from experiments throughout the reaction period, with methanol decreasing the rate of reaction, however, the activation energy is not significantly affected by the methanol concentration.