What compound is commonly used to locate chlorine leaks?

The use of ammonia to locate chlorine leaks is based on its chemical interaction with chlorine. When ammonia is introduced to an environment that contains chlorine, it forms chloramines. This reaction not only provides a visual indicator but also results in a noticeable odor, which helps in identifying the presence of chlorine. Chloramines are formed as a result of the interaction between ammonia and chlorine; their formation is an indicator of chlorine’s presence and any potential leaks.

Other options, while relevant in the water treatment context, do not serve the same purpose. Chloramines themselves can indicate chlorine presence but are the product of the interaction rather than a method to locate leaks. Trihalomethanes are byproducts of chlorine disinfection processes but do not specifically relate to leak detection. Sodium hypochlorite is a form of chlorine used for disinfection but does not provide indicators of leaks. Understanding this chemical reaction is crucial for water operators in maintaining safe and effective treatment processes.