Water treatment agent and water treatment method for boiler

Details Water treatment agent and water treatment method for boiler Water treatment agent and water treatment method for boiler

C - Chemistry, Metallurgy

23

F

134/35

C23F 14/02 (2006.01) C02F 5/12 (2006.01) C23F 11/08 (2006.01) C23F 11/10 (2006.01)

Patent

CA 2020858

A water treatment agent for boilers which comprises .as active ingredients a compound which can release aliphatic hydroxycarboxylic acid ions in water and a.polyamine represented by the following formula (I) or an acid addition product thereof: H2N(CH2CH2NH)n H ... ... (I) (wherein n denotes an integer of 2 to 5), and a water treatment method for pure water boilers or soft water boilers using the above active ingredients to prevent corrosion of the ferrous metal in the water system of the pure water boilers or soft water boilers.

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