1. Benzoic acod is commonly used as food preservative.
2.Benzoic acid is used as raw material in the production of pesticide,dye, medicinr, perfume, mordant, plasticizer.
3. Benzoic acid is usedas modifying agent for polyamide resin and alkyd resins.
4. Benzoic acid is used as rust inhibitor of steel equipment and so on.