How many times heavier than air is chlorine gas?

Chlorine gas is approximately 2.5 times heavier than air. This characteristic is important for wastewater operators to understand because the weight of chlorine in comparison to air affects its dispersion and potential hazards during handling and usage. Since chlorine can accumulate in low-lying areas, knowing its density relative to air helps operators implement appropriate safety measures and ventilation systems to minimize the risk of inhalation or exposure. Operators must be aware of this property when working with chlorine for disinfection processes, ensuring they monitor and control chlorine levels effectively in their facilities.