Corrosion and Scale Inhibition Water Treatment Composition and Its Method in a Closed-Circulation Cooling System

摘要

The present invention relates to a water treatment agent that inhibits corrosion and scale formation caused by cooling water in a closed circulation cooling system, and includes 0.1 to 50 wt% of nitrite, 0.1 to 40.0 wt% of phosphonate, and 0.1 to 20.0 wt of an azole compound. A corrosion and scale inhibiting water treatment composition of a closed circulation cooling system comprising% and remainder as water.