| 摘要 |
<p>The invention concerns a frost resistant and heat-transference liquid on potassium-acetate and potassium-formate basis, containing as erosion- and corrosion hindering components 4-6 mass% glycerine, 0.8-0.9 mass% alkali-benzoate, 0.08-0.12 mass% alkali-polymetaphosphates, 0.02-0.04 mass% borax. The concentration of the erosion- and corrosion hindering components is kept at the optimum level, regardless of the liquid's water content and in a given case 0.15-0.20 mass% benzo-or tolyl-triazole.</p> |
