What is silica? Accueil | MERN
Silica gel is used as an abrasive in toothpaste, a clarifying agent in beer, an absorbent agent in cosmetics and an anticaking agent in food. Silica can also be used to make silicon carbide by heating highpurity silica sand with petroleum coke to temperatures between 2,200° C and 2,400° C for 36 hours.