Caustic chemicals are substances that are highly corrosive and can cause severe burns to the skin. The term caustic chemicals includes lyes (4 letters), ACIDS (5 letters), LYE (3 letters) and DOW (3 letters). Lyes are alkaline solutions, usually sodium hydroxide or potassium hydroxide, which are used in a variety of industrial processes. ACIDS are compounds that release hydrogen ions when dissolved in water, and are often used in cleaning products. LYE is a common name for sodium hydroxide, and DOW is an acronym for Dow Chemical Company, a major producer of caustic chemicals.