Zirconium Crucible

zirconium crucible Each zirconium crucible is handmade to an exacting tolerance for uniform wall thickness û only high-purity zirconium material is used. These crucibles are produced under the most stringent requirements to ensure ultimate tensile strength, yield strength, elongation and chemical purity. Zirconium crucibles hold several advantages over other materials: 1. Improper heating over a burner will not cause the reducible contents to be converted into harmful, low-fusing metals which may react with the vessel. 2. Special apparatus is not required for handling hot zirconium crucibles. 3. Sudden contact with cold, metallic surfaces will have no deleterious effect on a zirconium crucible. 4. The only cleaning agent which should not be used to clean zirconium crucibles is hydrofluoric acid. 5. Zirconium crucibles require a minimum of specialized care so smoothing and shaping is not a special consideration. 6. The inherent strength of zirconium precludes the necessity of reinforced rims and thicker bottoms.