Why should water never be applied to a leaking chlorine cylinder?

Applying water to a leaking chlorine cylinder can exacerbate the leak due to the reaction between chlorine gas and water. Chlorine is a highly reactive and toxic substance, and when it comes into contact with water, it can form hydrochloric acid and other compounds, which may worsen the situation. This reaction can increase the pressure inside the cylinder, potentially leading to a greater release of gas and making containment more difficult.

In emergency scenarios, such as a leak from a chlorine cylinder, it is critical to avoid actions that could lead to an escalation of the hazard. Understanding the chemistry involved is essential for handling hazardous materials safely. Therefore, avoiding water application is vital to mitigate the risks associated with chlorine leakage.