Corrosive chemicals are substances that can cause damage to other materials through chemical reactions. The two most common types of corrosive chemicals are lyes and ACIDS. Lyes are alkaline compounds that are highly soluble in water and have a pH greater than 7. ACIDS are compounds that have a pH less than 7 and can react with metals, bases, and other materials. Both lyes and ACIDS can be extremely dangerous if handled improperly.