High Purity Sodium Metabisulfite SMBS Industrial Preservative Agent For Mining And Pulp Bleaching,
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Sodium Metabisulfite (SMBS / Sodium Pyrosulphite) is an important inorganic sulfite chemical, presented as fine white crystalline powder. The product will release sulfur dioxide gas under damp environment, so proper sealed storage is required to guarantee product quality.

This product has broad‑ranging industrial usages. In mineral processing and gold mining, it acts as effective reducing reagent for precious metal separation. Within paper‑making industry, it serves as bleaching agent for wood pulp to adjust pulp brightness. Besides, it is commonly used in wastewater treatment to reduce chromate and other harmful heavy metal substances. Food‑grade variant can be applied as food antioxidant and bacteriostatic agent complying with food safety standards. It also covers textile bleaching, wine brewing, leather depilation and chemical raw‑material synthesis.

We supply qualified sodium metabisulfite with strict impurity control. 25kg plastic lined woven bag is the regular package. We support full container bulk shipment, both palletized and non‑palletized loading options are available. We can offer flexible MOQ and quick delivery for global importers, and provide test certificates upon request.