In some areas of Australia, acid sulfate soils that drained 100 years ago are still releasing acid.

It also releases betulinic acid and lupeol from the stem bark.

This material releases acetic acid, the key ingredient in vinegar and responsible for its acidic smell.

Gastrinomas form in the cells that produce the hormone gastrin, which triggers the stomach to release acid.

It reacts with hot water to release hypochlorous acid and ammonia.

It releases strong acid upon contact with water.

If you take it with food, the stomach will release acid to digest the food.

The enzyme is regenerated by a hydrolytic attack of water which releases acetic acid.

It releases sulfuric acid when damaged, destroying itself and nearby seaweeds in the process.

It is hydrolyzed by hot water to release ammonia and hypochlorous acid.