Magnesia Cupel

Cupel is a shallow, porous crucible with approximately 96% magnesia. It is especially used to separate gold, silver, and precious metals from lead buckles in the process of Pb-Fire assay. By using high-quality raw materials and scientific formulas, GLS’s fire assay magnesia cupel has a smooth surface, high mechanical strength, and will not crack and pit during high-temperature cupellation.

  • Magnesia Cupel

    Request a Call Back

    Send an inquiry


        Share
      View Product Information
      • Not affected by atmospheric changes, Robust Mechanical Strength, No Spitting of Lead.
      • Cupels absorb litharge approximately 70% of their weight, Reduced tendency to freeze.
      • Made of high grade Magnesium Oxide and other special binding materials.
      • Thoroughly tested at our lab for quality, Consistently low losses.
      Categories: ,
      My Cart
      Close Wishlist
      Close Recently Viewed
      Categories