SOLUTION FOR SIMULTANEOUS DEGREASING AND AMORPHOUS PHOSPHATING Russian patent published in 2002 - IPC

FIELD: protection of ferrous and non-ferrous metals against corrosion; simultaneous cleaning and phosphating of metal articles before application of paints and varnishes. SUBSTANCE: solution contains the following components, mas.%: monosubstituted phosphate of alkali metal or ammonium in terms of phosphate-ions, 0.30-1.98; hydroxylamine salt in terms of hydroxylamine, 0.03-0.60; and/or hexavalent molybdenum salt in terms of hexavalent molybdenum, 0.002-0.015; one or several surface active agents of nonionic type selected from group including: neonol AF 9-6; neonol AF 9-12; propanol B-400; estephate 383; synthanol DC-10, synthanol OC-20, 0.01-0.15; organic acid, 0.012-0.05 and water, the balance. EFFECT: enhanced adhesion of coat to base; enhanced corrosion resistance; enhanced resistance to low temperatures; improved cleansing properties of solution. 5 cl, 2 tbl