Uxcell 22x9x9mm Alumina Crucible Boat Sample Holder Furnaces with Groove Alumina crucible feature highly resistant to chemical erosion. For use in reducing and oxidizing atmospheres and metals (such as molybdenum, platinum, rhodium, tungsten, and iridium).

Material: Composite Ceramic (30% MgO2 + 65% SIO2 + 5% AL2O3) Max. Working Temperature: 1300C Size (L*W*H): 22 x 9 x 9mm (0.87" x 0.35" x 0.35") Groove Size (L*W): 5 x 1mm (0.2" x 0.04") Thickness: 2mm (0.08") Fit Furnace Tube I.D.: >=13