ONE LIQUID TYPE WATER TREATING AGENT AND WATER TREATMENT METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a one liquid type water treating agent having bactericidal property, scale preventive property and corrosion resistance, and further having preserving stability. SOLUTION: The one liquid type treatment agent contains a mixture of an isothiazolone compound and an alkaline earth metal nitrate or an alkaline earth metal hydrochloride as a component (A), a benzotriazol based compound and/or an organic phosphonic acid as a component (B), a glycol based hydrophilic organic solvent and an amide based hydrophilic organic solvent as a component (C) and water as a component (D). The above problems are solved by a water treatment method using the same.