Acetaldehyde rectification temperature is high

yes. The top temperature of acetaldehyde distillation column is 2-7℃, and the bottom temperature is 6-16℃, which is high. Acetaldehyde, also known as acetaldehyde, is an organic compound, which is colorless and transparent liquid, soluble in water, miscible in ethanol, ether, benzene, gasoline, toluene, xylene, etc., and is mainly used as reducing agent.