| 摘要 |
<p>The invention relates to a product for the removal of mineral deposits from the surface of heat exchangers, the claimed product containing 18...85% by weight phosphoric acid, 0.05...1% by weight trisodium phosphate, 0.03...0.3% by weight organic corrosion inhibitor such as alkyl amido-amines or imidazolines saponified with carboxylic acids or mineral acids, conditioned in water-alcohol solvents and 10...82% by weight water of a hardness of 5...16A d, having a density of 1.1...1.7 g/cm3 and a pH value of the solution of 1...2.5.</p> |
