FIELD: heat-exchange engineering. SUBSTANCE: antifreeze comprises, wt. %: ethyleneglycol; 32.0-53.0; borax, 0.1-0.6; sodium nitrite, 0.5-0.9; triethanol amine, 0.01-0.07; benzotriazole, 0.01-0.03; single-module liquid glass, 0.02-0.08; dextrin, 0.02-0.06; product of sulfurization of glycerol with concentrated sulfuric acid, 0.01-0.03; antifoaming agent containing butanol and polymethyl siloxane at 25:1-(0.03-0.07) wt.pts; and water, the balance. EFFECT: high (not more than 0.05 g/sq.m per 24 h) of corrosion resistance of non-ferrous and ferrous metals and alloys thereof to antifreeze. 2 tbl
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RU2267563C2 |
