NH4C6H6O7

NH4C6H6O7 is the chemical formula for ammonium citrate. It is a salt formed from the reaction of citric acid with ammonia. Ammonium citrate is a white, crystalline powder that is soluble in water. It is used in a variety of applications, including as a food additive, a buffer in biological systems, and as a chelating agent.

As a food additive, ammonium citrate is often used as an acidity regulator and emulsifier. It can be found in products such as processed cheeses, jams, and jellies. In biological systems, its buffering capacity helps maintain a stable pH, which is crucial for enzyme function and cellular processes. Its chelating properties allow it to bind to metal ions, which can be useful in preventing spoilage or in certain analytical procedures.

Ammonium citrate can be prepared by reacting citric acid with ammonium hydroxide or gaseous ammonia. The reaction is typically carried out in an aqueous solution, and the resulting ammonium citrate can be isolated by evaporation of the water. The purity and specific properties of ammonium citrate can vary depending on the manufacturing process and the intended application.