The nature and Preparation of lead naphthenate

Lead naphthenate is translucent soft yellow sticky resin-like material, soluble in ethanol, benzene, toluene, turpentine and pine fragrance, do not dissolve in water. Lead naphthenate as paint, ink catalyst, diffusion agents, wood preservatives and pesticides and also for the preparation of lubricants. Lead naphthenate toxic, with symptoms of lead poisoning. Lead naphthenate naphthenate by double decomposition of sodium and lead acetate derived replacement. First water temperature naphthenic acid to 90-100 ℃, and then slowly adding 30% sodium hydroxide solution was saponified to the transparent solution may be sodium naphthenate, lead acetate metathesis with another replacement was crude by water washing, Heat dehydration was finished Lead naphthenate.