Ammonia under 6 PSIG boils at what temperature?

The boiling point of ammonia at a pressure of 6 PSIG (pounds per square inch gauge) is indeed around -15ºF. This temperature is derived from the relationship between pressure and temperature in the ammonia refrigeration cycle.

When the pressure increases, the boiling point of ammonia also increases. At lower pressures, ammonia will boil at significantly lower temperatures, allowing for efficient cooling in refrigeration applications.

At 6 PSIG, which is approximately equivalent to 20.7 inches of mercury, ammonia transitions from its liquid state to gas at -15ºF. Understanding this relationship is crucial for operating ammonia refrigeration systems efficiently, as it dictates how the system is designed and operated. Knowledge of the boiling points is also important for safety considerations when handling ammonia in industrial contexts.