Paraformaldehyde has high application value and my country’s market has low dependence on imports.

Paraformaldehyde, with a molecular formula of (CH2O)n and an n value between 8 and 100, is a formaldehyde polymer. It appears as white solid particles or powder, has a pungent odor like formaldehyde, and is toxic. Paraformaldehyde is easily soluble in hot water, slowly soluble in cold water, insoluble in alcohols and ethers, and soluble…