During the chlorosulfonation of N-acetanilide to p-acetamidobenzenesulfonyl chloride, sodium sulphate was added in late stage.

• 摘要在乙酰苯胺氯磺酰化合成对乙酰氨基苯磺酰氯的反应工艺中，反应后期加入硫酸钠。