Flexi Says: Bleach is a term that is often used for any substance that removes color pigments or disinfects. The most common chemical compound used as bleach is sodium hypochlorite, NaOCl. It is a base. This is a toxic, corrosive chemical that should be used with care. Always dilute beach for cleaning and use only in well ventilated spaces as it can be harmful to breathe. Take care to avoid getting bleach on your skin. Never drink bleach!