Taclene Chem 5211 is scale cum corrosion inhibitor for very high hardness and TDS waters in the cooling systems. Tacelene Chem 5211 is a liquid product formulated to control the deposition of calcium scales in once through and re-circulating cooling water systems. The product contains a threshold inhibitor, which is particularlyeffective for controlling the precipitation of calcium phosphate. Tacelene Chem 5211 is a dispersant for suspended material such as silt and metal oxides. This dispersant action maintains the insoluble material in suspension, facilitating its removal from the system.