CuAsO4

Copper arsenate (CuAsO₄) is an inorganic ceramic compound combining copper and arsenate ions, representing a class of metal arsenate ceramics with potential applications in specialized functional materials. While not widely used in mainstream engineering, this compound and related arsenate ceramics have been explored in research contexts for applications requiring specific chemical or thermal properties, though such materials typically face scrutiny due to arsenic toxicity concerns and regulatory restrictions in many applications. Engineers would encounter this material primarily in historical contexts, laboratory synthesis work, or specialized niche applications where its particular phase chemistry or crystal structure offers distinct advantages over more conventional alternatives.