ANTIFREEZE Russian patent published in 2003 - IPC

FIELD: low-freezing fluids. SUBSTANCE: antifreeze is composed of, wt %: potassium carbonate 0.50-2.00, 75% orthophosphoric acid 0.20-1.00, 2- mercaptobenzthiazole sodium salt (Captax) 0.005-0.100, ethylenediaminetetraacetic acid disodium salt dihydrate 0.01-0.10, caprolactam 0.01-1.00, liquid glass with silica modulus 2.8, 0.80-1.00, foam suppressor 0.001-0.003, butyl alcohol 0.01-0.03, dye 0.002-0.003, ethylene glycol or polyglycols 54.00-65.00, and water - the balance. EFFECT: improved performance characteristics. 3 tbl, 3 ex