Used as a source of calcium ions in electroplating baths, particularly in metal finishing and precision engineering applications. Its high solubility and low toxicity make it suitable for plating calcium onto metals and alloys where controlled deposition is required. Also employed in the formulation of electrolytes for specialized batteries and electrochemical devices due to its stability and ionic conductivity. In organic synthesis, it acts as a mild Lewis acid catalyst for esterification and condensation reactions. Additionally, finds use in water treatment processes to introduce biologically available calcium in controlled environments such as aquaculture and industrial cooling systems.