Ammonia Water Storage Tank

When it comes to ammonia water storage tanks, let’s first introduce ammonia water. Ammonia and water form ammonia (NH3 + H2O = NH3·H2O), which is weakly alkaline. Ammonia water is extremely unstable and decomposes when heated. The pH value of a 1% aqueous solution is 11.7. Concentrated ammonia water contains 28% – 29% ammonia. Ammonia is a gas under normal conditions, lighter than air, and easily escapes. It has strong irritation and corrosiveness, so it can easily cause acute poisoning and burns. Ammonia water easily decomposes to release ammonia gas; the higher the temperature, the faster the decomposition rate, and it can form explosive gas. In case of high heat, the internal pressure of the container will increase, posing a risk of cracking and explosion. Therefore, the airtightness, pressure resistance, and explosion – proof performance of ammonia water storage tanks need to be considered.

Ammonia water should be stored in a cool, dry, and well – ventilated warehouse. Therefore, the design temperature of ammonia water storage tanks is generally below 50 °C to prevent the decomposition of ammonia in high – temperature ammonia water.