FIELD: inorganic chemistry, particularly, production of double basic lead phosphite being used as high effective stabilizing agent for polymers, particularly, compositions of PVC. SUBSTANCE: method involves interaction of solution of sodium hydroxide with phosphorous-containing reagent which takes place by mixing. Thus obtained solution of sodium phosphite is mixed with lead acetate to prepare suspension of double basic lead phosphite. Then thus prepared suspension is affected by filtration, and final product is then dried. EFFECT: increased yield of desired product. 2 tbl
