Olfactory indicators are useful in situations where visual observation of color changes may not be feasible or desirable. They can provide a quick and simple way to detect the presence of acids or bases, particularly in environments where chemical testing equipment may not be available or practical.
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Olfactory indicators are crucial in practical applications for their ability to detect specific odors associated with substances or conditions. In gas industries, the addition of distinctive odors like ethyl mercaptan to natural gas allows for the rapid detection of leaks. Ammonia’s pungent smell aids in identifying leaks in refrigeration systems. The characteristic odor of rotten eggs (hydrogen sulfide) signals potential hazards. Olfactory indicators are valuable in safety protocols, environmental monitoring, and identifying chemical reactions. Their use relies on the human sense of smell, providing a quick and intuitive way to recognize specific substances or conditions without the need for sophisticated equipment.