FIELD: cleaners.
SUBSTANCE: cleaning solutions for industrial cleaning of metallic surfaces, in particular when preparing metal before dyeing and depositing metal coatings in mechanical engineering, metallurgy, and other areas, contain, wt %: potassium silicate 0.2-0.5, sodium silicate 0.1-0.25, sodium nitrate 0.03-0.05, soda ash 2-4, and water.
EFFECT: enhanced cleaning and passivating capabilities of solution having reduced toxicity, which allows spray washing of metallic articles.
2 tbl, 5 ex
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