本实验产率较低，由于苯甲醛易被氧化，故久置的苯甲醛会被氧化成苯甲酸，会

本实验产率较低，由于苯甲醛易被氧化，故久置的苯甲醛会被氧化成苯甲酸，会导致实验产生误差，而且在回流时加热强度不宜过大，否则乙酸酐会被蒸出，同时向三口瓶加水可以使苯甲醛与水形成共沸物，更有利于苯甲醛被蒸出

結果 (中文) 2:

In this experiment, yield is low, due to benzene formaldehyde is oxidized easily, so long the benzaldehyde is oxidized to benzoic acid, causes the experimental error, and in return for heating when the intensity should not be too large, otherwise the acetic anhydride can be steamed, at the same time to three bottles of water can make the benzaldehyde with water to form a total of azeotrope, more conducive to benzaldehyde was steaming