Searching for sodium benzoate suppliers? We at Tradeasia International Inc. are a wholesale supplier of soda ash in India. Sodium benzoate is the inorganic compound Na2CO3 and its various hydrates. The solutions formed from dissolving any of the three forms in water are moderately alkaline in pH and are colorless and odourless. In the past, it was recovered from the combustion of plants cultivated in high-sodium environments.