What is an ammonia release?
Matthew Wilson
Updated on May 04, 2026
In refrigeration systems, ammonia is liquefied under pressure. Any liquid ammonia released to the atmosphere will aerosolize producing a mixture of liquid and vapor at a temperature of –28ºF. The released ammonia rapidly absorbs moisture in the air and forms a dense, visible white cloud of ammonium hydroxide.
What led to the release of a large quantity of anhydrous ammonia at Millard Refrigerated Services?
In the end hydraulic shock resulted. A roof-‐mounted 12-‐inch suction pipe catastrophically failed, which causes the release of more than 32,000 pounds of anhydrous ammonia. A Millard employee was injured due to falling while trying to exit the crane when the released ammonia cloud engulfed it.
What is the cause of ammonia leak?
Ammonia is stored in closed pressurized containers, so leaks can occur when there are broken pipes and equipment. Exposure to ammonia can be poisonous in high concentrations.
Why is ammonia still being used?
Those involved in food preservation and industrial process plants know that ammonia has an important role In modern refrigeration because of its thermodynamic properties. Ammonia was among the early refrigerants used in mechanical systems, and it is still a popular refrigerant.
Can ammonia be used as fuel?
Ammonia has been produced and utilized for the past 100 years as a fertilizer, chemical raw material, and refrigerant. Ammonia can be used as a fuel but there are several challenges in ammonia combustion, such as low flammability, high NOx emission, and low radiation intensity.
Can you smell an ammonia leak?
If breathed in, ammonia can irritate the respiratory tract and can cause coughing, wheezing and shortness of breath. Inhalation of ammonia can also cause nose and throat irritation. People can smell the pungent odor of ammonia in air at about 5 parts of ammonia in a million parts of air (ppm).
Do refrigerators still use ammonia?
That noise is the sound of high-pressure liquid refrigerant flowing through the expansion valve. Pure ammonia gas is highly toxic to people and would pose a threat if the refrigerator were to leak, so all home refrigerators don’t use pure ammonia. Many large industrial refrigerators still use ammonia.
Does ammonia get old?
Cleaning Products Bleach, ammonia, dishwashing soap, laundry detergent, and other cleansers can go bad over time, losing potency and cleaning effectiveness. They may also start to erode the containers in which they are stored.
Why is anhydrous ammonia so dangerous?
Exposure to anhydrous ammonia is very dangerous because the gas is a hygroscopic compound that seeks moisture from the nearest source, which can be the moisture-laden tissue of the human body.
How do you clean up ammonia spill?
Cleaning Ammonia Spills Create a dry mixture. Mix together equal parts baking soda (sodium bicarbonate), clay cat litter and dry sand. Acquire a weak acid. An acid or alkaline compound can be used to neutralize ammonia, making it safer to handle. Identify the ammonia spill. Cover the spill with your dry spill mix.
How do you neutralize ammonia?
An acid or alkaline compound can be used to neutralize ammonia, making it safer to handle. You could use hydrochloric or sulfuric neutralizers. Application of these products to the spill will cause a chemical reaction that will neutralize the ammonia. Search for ammonia neutralizers.