FIELD: smoothening water at usual conditions. SUBSTANCE: composition for smoothening water comprises, mas.%: potassium hydroxide, 8.5-0.1; potassium carbonate, 0.1-16.0; color index, 0.006-0.042; hard water having total hardness 4-30 mg eqiuv/l, the balance. Phenolphthalein or thymolphtalein is used as color index. EFFECT: improved quality of desired product. 1 tbl
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