Ammonium dihydrogen phosphate

Ammonium Dihydrogen Phosphate crystals

Ammonium Dihydrogen Phosphate

Ammonium dihydrogen phosphate, also known as ADP, is a chemical compound with the formula NH4H2PO4. It is a white crystalline solid that is highly soluble in water. ADP is commonly used in fertilizers, food additives, and as a buffering agent in some laboratory applications.

Properties

Ammonium dihydrogen phosphate is a non-toxic compound that is stable under normal conditions. It has a melting point of 190 degrees Celsius and is soluble in water. ADP is slightly acidic in nature and can act as a source of both ammonium and phosphate ions.

Uses

ADP is primarily used as a fertilizer in agriculture due to its high solubility and the fact that it provides both ammonium and phosphate nutrients to plants. It is also used in the food industry as a food additive, particularly in baking powders. In addition, ADP is used in some laboratory applications as a buffering agent to maintain a specific pH level.

Production

Ammonium dihydrogen phosphate is typically produced by reacting phosphoric acid with ammonia. The resulting solution is then evaporated to yield the solid ADP crystals. The compound can also be synthesized by reacting ammonium carbonate with phosphoric acid.

Safety

ADP is generally considered safe for use in the specified applications. However, like any chemical compound, it should be handled with care to avoid ingestion or contact with skin or eyes. In case of accidental exposure, appropriate safety measures should be taken.

See also

• Ammonium phosphate
• Phosphoric acid

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