What is a Aluminum phosphate (AlPO₄)?

Aluminum phosphate (AlPO₄) is an inorganic compound composed of aluminum and phosphate, typically appearing as a white crystalline powder. It occurs naturally as the mineral berlinite and is chemically stable, with low solubility in water but some reactivity with acids and bases. In medicine, aluminum phosphate is widely used as an antacid and a treatment for ulcers or excess stomach acid. It's also commonly used as an adjuvant in vaccines to enhance immune responses.

Industrially, it is used in ceramics, flame retardants, catalysts, insulating materials, and ion exchange media. Due to its thermal stability and electrical insulating properties, it's valuable in electronics and high-temperature environments. Some forms have porous, zeolite-like structures, useful as adsorbents and molecular sieves. Environmentally, it's explored as a heavy metal absorbent and soil conditioner. With low toxicity and good biocompatibility, it also shows promise in biomedical applications.

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