| 摘要 |
The boiler anti-corrosive of the present invention contains an amine compound represented by formula (1):
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒNH 2 -(CH 2 ) m -O-(CH 2 ) n -OH ···€ƒ€ƒ€ƒ€ƒ€ƒ(1)
(wherein each of m and n is an integer of 1 to 3), or contains an oxygen scavenger and the amine compound represented by formula (1). The anti-corrosive is generally used in a boiler operated with a superheater or a steam turbine, or in such a boiler to which treated water is fed, and can more effectively maintain the pH of boiler water and can prevent corrosion not only of the boiler tank but also in the entire boiler system including a feed-condensate system, without adding a large amount of phosphate salt or elevating the Na/PO 4 mole ratio to 3 or higher. |
