Which of the following is a potential hazard when using chlorine gas?

Chlorine gas is widely used in water treatment processes, but it poses several hazards that must be understood and managed effectively. One major concern when handling chlorine gas is its corrosive nature. Chlorine can easily corrode various metals and materials, leading to equipment damage and potential leaks, which can be hazardous both to personnel and the environment.

In addition to corrosion, chlorine gas also presents fire risks. Although chlorine itself is not flammable, it can enhance the combustion of other materials, increasing the likelihood of fire in certain situations. This property necessitates careful management of chlorine storage and handling in facilities where flammable materials may be present.

Moreover, chlorine gas can create explosive environments. When chlorine gas mixes with certain substances or materials in specific concentrations, it can lead to explosive reactions, posing further risks to workers and infrastructure.

Given this context, recognizing that chlorine gas poses hazards related to corrosion, fire, and explosion emphasizes the importance of comprehensive safety protocols for those who work with this hazardous material. Therefore, the correct answer encompasses the full range of potential hazards associated with chlorine gas usage, which includes all of the mentioned risks.