Anti-caking agent: salt, soups, coffee creamer, and other dry, powdery foods.
This chemical is just sand. Silicon dioxide occurs naturally in foods, especially foods derived from plants. Breathed in, silica dust can cause lung disease, even cancer. For use in food, it is finely ground and added to salt and other foods to help powders flow more easily. Aluminium calcium silicate and tricalcium silicate are also used in foods, and calcium silicate is used in some dietary supplements.