FIELD: chemical industry; methods of production of the water solution of disodium or dipotassium salt of zinc oxyethyledene phosphonate.
SUBSTANCE: the invention is pertaining to the method of production of the water solutions of disodium or dipotassium salt of zinc oxyethyledene phosohonate with concentration of 15-23 % used as the mineral salts sediments inhibitors and as the microfertilizers and having the properties to inhibit corrosion. The method provides for interaction of the water solution of the sodium zincate or the potassium zincate with the 20-60 % water solution of the oxyethyledenephosphonic acid at the temperature of 60-80°С. As a rule, the sodium zincate or the potassium zincate are produced by interaction of 5-20 % water solution of the sodium hydroxide or the potassium hydroxide with zinc oxide at the temperature of 50-75°С at the molar relation of 2:1.
EFFECT: the invention ensures, that as the rule the sodium zincate or the potassium zincate are produced by interaction of the low-concentration water solutions of the sodium hydroxide or the potassium hydroxide with zinc oxide at the temperature of 50-75°С at the molar relation of 2:1.
2 cl, 1 tbl, 11 ex
