Chromium arsenic is primarily used in the semiconductor industry, particularly in the production of advanced electronic and optoelectronic devices. It serves as a key material in the development of certain high-efficiency thermoelectric devices due to its favorable electrical conductivity and thermal properties. The compound is also investigated for use in specialized alloys where enhanced hardness and resistance to high-temperature oxidation are required. Additionally, it plays a role in research settings for spintronics and quantum computing applications, where precise control over electron spin and material conductivity is critical. Due to its toxicity and environmental concerns, its use is highly regulated and typically confined to controlled industrial and laboratory environments.