A very hard, brittle, heat-resistant substance that is used to grind the edges or rough surfaces of an object. A substance added to food or beverages to lower pH and to impart a tart, acid taste.
Phosphoric acid is an acidulant added to cola drinks.
A porous form of carbon that acts as a powerful adsorbent , used to decolorize liquids, recover solvents, and remove toxins from water and air. antichlor. A chemical compound that reacts with chlorine-based bleaches to stop the bleaching. Thiosulfate compounds are antichlors. Antioxidants are compounds that slow oxidation processes that degrade foods, fuels, rubber, plastic, and other materials. Substances that reverse or prevent severe oxidation by ozone.