Paraformaldehyde

Its consistent quality makes it an essential raw material in many chemical synthesis pathways. Paraformaldehyde is available in different grades such as industrial grade, high-purity grade, and customized specifications with varying formaldehyde content and particle sizes. It is extensively used in the production of phenolic, urea, and melamine resins, agrochemicals, pharmaceuticals, dyes, rubber chemicals, and specialty intermediates. Chemically, paraformaldehyde consists of polymerized formaldehyde units, typically containing 91–96% formaldehyde, with low methanol and moisture content. Key technical properties include excellent reactivity, good thermal stability under dry conditions, controlled depolymerization, low solubility in cold water, and efficient dissolution in hot water or alcohols. These features enable precise dosing and consistent reaction performance in industrial formulations.