福尔马林(36％)是一种常用消毒剂,长期存放往往因其中甲醛聚合产生一种乳白色沉淀,使含量降低而影响溶液的配制及使用。甲醛沉淀难于解聚,加入适量甲醇亦不能完全避免沉淀产生。经试验,在使用含有沉淀的福尔马林时,可用温 Formalin (36%) is a commonly used disinfectant. Long-term storage often results in the formation of a milky white precipitate due to the polymerization of formaldehyde, which reduces the content of the solution and affects the formulation and use of the solution. Formaldehyde precipitation difficult to depolymerization, adding the right amount of methanol can not completely prevent the precipitation. After testing, the use of precipitated formalin, the temperature can be used