FIELD: cleaning of power equipment, more particularly chemical agents for cleaning various surfaces. SUBSTANCE: chemical agents are used for cleaning surfaces of products made of ferrous and nonferrous metals, plastic materials and various coated surfaces from scale and corrosion and for cleaning power equipment (boilers, turbines, water heaters, etc). Cleaning agent comprises, g/l: complexon, 24.0-26.0; and ascorbic acid, 1.0-3.0. Composition makes it possible to remove scale and corrosion deposits of any density at removal rate of 0.5- 0.6 g/sq.cm*h and small amount of used composition. EFFECT: improved properties of cleaning composition. 2 tbl
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