Tetra Ethyl Ammonium Hydroxide AQ. Solution (TEAH) is well known for its pure content. Available in colorless liquid form, this chemical has slightly amine like smell. It readily dissolves in water. Chemical stability of this chemical remains intact when stored under normal temperature. During this time, no hazardous polymerization of this chemical can be noticed. It is incompatible with strong oxidizing factors and strong acids. Its standard has been checked on the basis of its purity level, composition, storage life, possible toxic content and chemical stability.