JSP Borax Acid for Gold Refining – 8 oz or 2 lb Jar | Flux for Melting & Oxidation Protection

Refine Gold Like a Pro – With Borax (Sodium Borate) Our high-purity Borax (Sodium Borate) is a proven and effective fluxing agent for melting and refining gold, silver, and other precious metals. This 8 oz jar is ideal for jewelers, metal casters, prospectors, and small-scale refiners who want a clean, high-yield melt every time. 🔬 Why Use Borax in Gold Refining? Fluxing AgentBorax melts and combines with impurities and metal oxides during the smelting process, forming an easily removable slag that leaves behind clean, pure metal. Lowers Melting PointBorax significantly reduces the melting temperature of gold ore and concentrates, making the refining process more energy-efficient and accessible — even with small furnaces or torches. Oxidation ProtectionForms a protective layer over molten metal to prevent oxidation and metal loss during heating. Essential in the Borax MethodUsed in mercury-free gold refining, especially in artisanal and small-scale mining (ASM). It’s a safer alternati