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Corrosion Inhibitor Para B9320

Corrosion inhibitor “B 9320” is an aqueous solution of complex compounds of organic phosphonic acids with zinc. The inhibitor is designed to protect heat exchange equipment and communications in the systems of circulating water supply of industrial enterprises. Inhibitor “B 9320” is used for corrosion protection of ferrous and non-ferrous metals. Scale inhibitor “B 9320” is produced in three grades A, M1 and M2 in accordance with the current technical conditions TU 2482-068-17423242-2012 with rev. one.

Used in services

Protection of equipment for water circulation systems


Inhibitor “B 9320” is dosed into the water circulation system constantly using a dosing pump. Dosing can be carried out directly from product drums or from working plastic containers. The joint supply of a corrosion inhibitor with bioscale inhibitors and dispersants is carried out to various places in the system (pump suction, cold water chamber, cooling tower bowl).


The dosage of the B 9320 inhibitor depends on the composition of the water. As a general recommendation, the working concentration of the inhibitor in the circulating water should be 20-50 g / cm3. At the initial application of the inhibitor, a shock dosage of about 30-50 ppm per volume of circulating water is recommended to form a protective film.

physical and chemical indicators brand M1 brand M2 Brand A
Appearance liquid from light yellow to dark brown colorless to yellow liquid colorless to yellow liquid
Density at 20C, g / cm3 1,300 – 1,500 1,270 – 1,450 1,270 – 1,450
Pour point, С, not higher minus 5 minus 30 minus 30
Size pH, ed. not less than 7.0 no more than 3.0 no more than 3.0