| 摘要 |
PROBLEM TO BE SOLVED: To provide a deoxidizer which, when added to boiler feed water or the like, shows an effective anti-corrosion action especially in a water supply line at low temperature and low pH, and a deoxidation method. SOLUTION: The deoxidizer contains gallic acid and/or gallate, and a material releasing sulfite ions into water as effective components. COPYRIGHT: (C)2005,JPO&NCIPI
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