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Originally Posted by oilboy2
Advisories on safe handling of anhydrous ammonia generally state that the chemical is not considered an explosion risk when in the air as a gas. They add, however, that it can explode in certain concentrations inside a container.
“Emergency responders should not mix water used for firefighting directly with anhydrous ammonia as this will result in warming of the product, causing the liquid to turn into a vapor cloud,” says the website of Calamco, a growers’ cooperative in California.
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