What are the uses of anhydrous sodium sulfite?Anhydrous sodium sulfite is used as a food preservative, fungicide, and antioxidant. It is also used in the manufacture of paper, textiles, leather, and other fibers. What is anhydrous sodium sulphite? Anhydrous sodium sulfite or the Sodium Sulfite Anhydrous is a white powder that is used as a bleaching agent and deodorizer. Sodium sulfite...