Besides in soaps and detergent manufacturing, caustic soda is used as an acidity regulator for food. Having an E number of E524 authorized from the European Food Safety Authority, caustic soda is legally identified as a food additive in the food industry. Tradeasia International as a global supplier of caustic soda provides you with caustic soda for your market solution. Get caustic soda in different grades, quantities, and packaging right now.