Aluminium arsenate, with the chemical formula AlAsO4, is a chemical compound composed of aluminium (Al), arsenic (As), and oxygen (O). It is an inorganic compound and falls into the category of arsenates, which are compounds containing the arsenate ion (AsO4^3-).

Aluminium arsenate can exist in different forms or phases depending on the specific conditions of its synthesis or preparation. Some of the common forms of aluminium arsenate include the anhydrous form (AlAsO4) and the hydrated forms (AlAsO4·xH2O), where x represents the number of water molecules associated with the compound.

As with other arsenates, aluminium arsenate has limited practical applications due to the toxicity and hazards associated with arsenic-containing compounds. Arsenic is a known poison, and its compounds are generally handled with extreme care in scientific research settings.

In some cases, aluminium arsenate might be of interest in scientific research to understand its crystal structure, properties, and behavior in certain chemical reactions. However, it is not a commercially significant compound and does not have widespread use in industry or technology.

Given the potential health and environmental risks associated with arsenic compounds, strict safety precautions should be taken when handling aluminium arsenate or any other substances containing arsenic. It is essential to follow proper safety guidelines and disposal protocols to prevent exposure and minimize potential harm.