Calcium hypochlorite contains what percentage of available chlorine by weight?

Calcium hypochlorite is a widely used disinfectant, particularly in swimming pools, due to its effective chlorine content and stability. It typically contains around 65% available chlorine by weight. This high concentration makes calcium hypochlorite a preferred choice for chlorination because it provides a strong, quick-acting disinfectant capability.

The percentage of available chlorine is crucial for operators to understand, as it determines the appropriate dosage needed to maintain effective sanitation levels in the pool water. Knowing that calcium hypochlorite has a 65% chlorine content helps in calculating the right amount to use for shock treatments or routine chlorination, ensuring that the water remains safe and free of harmful pathogens.

Options suggesting percentages significantly lower than 65% would underestimate the strength of calcium hypochlorite as a chlorinator. A value of 45% or 50% does not accurately represent its capability, while a value of 70% may lead to overestimation and potential misuse or handling concerns in pool operations. Understanding the correct concentration helps certified operators maintain safety and compliance with health regulations.