Uses In food processing industry, it is used as buffer, chelate agent, nutrient additive, emulsifier, flavor for yoghurt. 1,Chemical name Dihydrous trisodium ... .0-13.06,Uses In food processing industry, it is used as buffer, chelate agent, nutrient additive, emulsifier, flavor for yoghurt. In ... care, so as to avoid damage to Bags. SODIUM CITRATE FOOD, BP