One of the most important catalysts in the organic chemical industry, supplied as a white to yellow powder. This material is highly hygroscopic and reacts violently in the presence of water.
Safety Note: Anhydrous aluminum chloride is a corrosive, fuming, and dangerous substance. Contact with skin, eyes, and inhalation of its vapors are highly harmful and it must strictly be handled using appropriate personal protective equipment (resistant gloves, safety goggles, suitable respirator, and fume hood).