Manganese Dioxide MnO2 Powder 300 Mesh Oxidizer for Gold Silver Refining

Manganese Dioxide (MnO₂) is an essential oxidizing compound used in precious metal refining, smelting, and recovery processes. This fine 300-mesh powder is a high-purity industrial-grade reagent designed for consistent performance in gold and silver precipitation, flux preparation, and chemical refining reactions. In refining, Manganese Dioxide acts as a powerful oxidizer, helping to break down base metals, remove impurities, and assist in converting dissolved precious metals back into solid form. It also serves as a catalyst and decolorizer, improving clarity and purity during recovery. Key Benefits for Refiners High-Purity Industrial Grade MnO₂ – ideal for refining, smelting, and metal purification Consistent Fine Powder (300 Mesh) – mixes evenly with other chemicals and fluxes Oxidizing Agent – assists in breaking down base metals and precipitating gold and silver Catalyst and Scavenger – removes unwanted elements and color impurities in refining baths Versatile Use – compatible with aqua regia, nitric-based, and alternative refining systems Common Refining Applications Gold and silver precipitation and purification Flux component in high-temperature smelting operations Oxidizer for removing trace impurities from solution Catalyst in chemical reactions for metal recovery Decolorizer and scavenger in refining baths and electrolytes Product Details Chemical Name: Manganese Dioxide Formula: MnO₂ CAS Number: 1313-13-9 Mesh Size: 300 (fine powder) Weight: varies (you choose) Form: Black powder Packaging: Moisture-resistant resealable bag Country of Origin: USA Additional Uses While primarily valued in precious metal refining, MnO₂ also has wide applications in ceramic glazes, pigments, batteries, laboratory catalysts, and water purification. Safety Note For professional and industrial use only. Avoid inhalation and skin contact. Use in a well-ventilated area with appropriate protective gear.