| 摘要 |
<p>A water treating agent which has a high safety and is to be used for preventing corrosion and scale formation in the feed water lines and steam generation system and for preventing corrosion in the steam condensate lines in plants, boilers and steam generators, the said water treating agent comprising volatile components capable of being transferred from aqueous phase to steam phase and to steam condensate phase and exhibiting high ability for preventing scale formation and corrosion at a lower dose even for a feed water containing carbonates and bicarbonates, together with its advantageous feature of capability of application to the feed water in a form of a single aqueous solution due to its high water-solubility, without causing separation and deposition upon dilution with water, wherein the said water treating agent comprises eugenol, isoeugenol and lactones represented by the formula (1) given below and, on requirement, a neutralizing amine and erysorbic acid or its salt, together with, if necessary, an alkali agent and/or a water-soluble polymeric compound: <CHEM> in which n is an integer of 4 to 9.</p> |
