FIELD: corrosion protection. SUBSTANCE: powder-like mixture is first prepared containing (in wt %): zinc dehydrophosphate, 60.0-65.0; sodium nitrate, 30.0-39.0; nickel nitrate, 0.5-1.5; and sodium phosphate, 0.5-5.0. Mixture is then dissolved in water to operating concentration 8-60 g/l. EFFECT: reduced phosphatation temperature, slag formation, and increased running time of composition until concentration adjusting is required.
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