AGENT FOR PREVENTING CALCIUM-BASED SCALE IN WATER SYSTEMS, AND SCALE PREVENTION METHOD

摘要

[Solution] An agent for preventing calcium-based scale in water system, the agent containing a copolymer including a constitutional unit derived from a (meth)acrylate and a constitutional unit derived from an ethyl (meth)acrylate. A phosphonate compound may be additionally contained therein. A method for preventing calcium-based scale in water systems, the method involving adding said scale preventing agent to a water system to be treated. Provided are a scale preventing agent and a scale prevention method with which adhesion of calcium-based scale is effectively prevented in water systems.