FIELD: chemistry.
SUBSTANCE: invention can be used for stabilised water treatment in water circulation systems of industrial and power generation enterprises and in public services. The composition contains hydroxyethylidene diphosphonic acid (HEDP), nitrilotrimethyl phosphonic acid (NTP), hexamethylenediamine-tetramethylene phosphonic acid (HMDTP) in water in molar ratio of total amount of HEDP and NTP to the amount of HMDTP equal to (2-4):1.
EFFECT: obtaining a non-toxic composition which is highly efficient at low concentrations.
3 ex
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