FIELD: chemistry.
SUBSTANCE: invention relates to compositions for preventing congelation of granular materials and dust formation and can be used against dust formation in coal, mining, metallurgical, construction and other industries in subzero temperature conditions. The composition contains (wt %): calcium chloride and (or) magnesium chloride - 10-30; sodium dihydrophosphate and(or) potassium dihydrophosphate - 0.1-0.2; methylene blue - 0.005; water - the balance.
EFFECT: invention enables to obtain a composition with low corrosive-aggressive properties, high efficiency of dust suppression and does not harm the environment.
1 tbl, 3 ex
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Authors
Dates
2013-06-20—Published
2011-10-24—Filed