Ammonium sulfite ((NH₄)₂SO₃) is typically available as crystals and used in paper, water treatment, and environmental applications. Ammonium bisulfite (NH₄HSO₃) is a liquid solution with higher reducibility, ideal for pharmaceuticals, petroleum drilling, and food processing. Both are efficient reductants but differ in form and specific uses.
Products must be stored in cool, dry, and well-ventilated areas, away from acids and direct sunlight. Specific packaging (e.g., polyethylene-lined bags, drums) is used to prevent contamination. We provide detailed safety data sheets for each product.
Our products strictly adhere to relevant standards, such as HG/T 2784—2023 for industrial ammonium sulfite and HG/T 2785-2022 for ammonium bisulfite. We also follow GB/T19001-2016/ISO9001:2015 quality management systems, ensuring high purity, safety, and reliability for global customers.
Ammonium sulfite is widely used as a cooking aid in the pulp and paper industry to separate lignin and cellulose, as a dechlorinator and desulfurization agent in water and waste gas treatment, in food industry for caramel color production, and in environmental protection for aldehyde removal. Its versatility makes it essential for multiple sectors.