Al2PO4H2O

Al2PO4H2O is the chemical formula representing aluminum phosphate monohydrate. This compound is a hydrated salt of aluminum and phosphoric acid. In its crystalline form, it contains one molecule of water for every formula unit of aluminum phosphate. The precise structure and properties can vary depending on the specific crystalline form and synthesis conditions. Aluminum phosphate monohydrate is generally considered to be an inorganic compound.

This substance can be synthesized through various chemical reactions, often involving the precipitation of aluminum hydroxide or aluminum oxide in the presence of phosphoric acid. The resulting precipitate is then filtered, washed, and dried, potentially yielding the monohydrate form under controlled conditions. Its physical appearance is typically a white solid, though the exact color and texture can depend on purity and particle size.

Aluminum phosphate monohydrate finds applications in several fields. It is used as a component in certain types of cements and refractory materials due to its thermal stability and binding properties. In agriculture, it can serve as a source of both aluminum and phosphate, although its use in fertilizers is less common than other phosphate compounds due to potential aluminum toxicity issues in some soils. Research has also explored its potential in areas such as catalysis and as a precursor for other aluminum-containing materials.