Sulfite aqueous treatment agent and water treatment method

摘要

Problem to be solved: to provide a sulfite type water treatment agent capable of giving excellent corrosion resistance and excellent preservation stability.Solution: a sulfite aqueous treatment agent added to the boiler feed, containing sulfite, silicic acid or silicate, and alkali metal hydroxide, the concentration of the sulfite is 10 to 25% by weight, and the concentration of silicon dioxide derived from silicate or silicate is 1 to 15% by weight The ratio of potassium ion concentration ([K +]) to sodium ion concentration ([Na +]) is (2 + 5 to 2 / 1) sulfite based water treatment agent.No selection