FIELD: chemical compositions and method of water treatment for inhibition of corrosion and/or formation of deposits, in particular, for treatment of water passing through water distribution pipelines, valves and associated heat exchangers, and more specifically, for treatment of water in heat transfer equipment where water or steam is used as heat carrier. SUBSTANCE: water is treated with chemical composition containing mixture of at least two monohydric or polyhydric alcohols in the amount of 60-97 wt.-%, polyacrylic acid of mixed molecular weight and/or at least one of its salts in the amount of 1-38 wt.-% and at least one lignosulfonate containing no chromium amounting to 1-38 wt.-%. EFFECT: higher efficiency. 9 cl, 2 tbl
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