Also known as TEAC monohydrate or TEA Chloride Hydrate, this quaternary ammonium compound is crystalline in form and soluble in water. Hygroscopic and incompatible with strong oxidizing agents, it should be stored locked up, desiccate at room temperature. Tetraethylammonium Chloride Monohydrate exhibits acute oral toxicity and causes serious eye irritation as well as skin irritation.