What chemical is typically used to neutralize leaking chlorine gas?

Sodium hydroxide is utilized to neutralize leaking chlorine gas due to its strong alkaline properties. When chlorine gas, which is highly reactive and toxic, escapes, the introduction of sodium hydroxide can effectively neutralize it through a reaction that converts chlorine gas into sodium chloride (table salt) and water. This reaction not only helps in mitigating the harmful effects of the gas but also makes it easier to handle the resulting compounds, which are significantly less hazardous than chlorine gas itself.

Understanding the chemistry involved is crucial in scenarios where chlorine gas leaks can occur, as this knowledge directly contributes to a safe and effective emergency response strategy. The effectiveness of sodium hydroxide in neutralizing chlorine is particularly valuable in wastewater treatment and disinfection processes, where chlorine is frequently used.