my country’s phthalic anhydride production capacity and output continue to grow, and plasticizers are the largest application field
Phthalic anhydride, also known as phthalic anhydride, is a cyclic acid anhydride produced by dehydration of phthalic acid molecules. Phthalic anhydride mostly appears as white crystalline powder under normal temperature and pressure. It is insoluble in cold water, but soluble in hot water, pyridine solvent, ethanol solvent, and ether solvent. Compared with other chemical materials,…