Uxcell 22ml 102x27x18mm Corundum Alumina Crucible Boat Sample Holder Furnaces Alumina crucible (or corundum crucible, aluminum oxide >99%) feature highly resistant to chemical erosion. For use in reducing and oxidizing atmospheres and metals (such as molybdenum, platinum, rhodium, tungsten, and iridium). Heating too fast or uneven heating may crack the crucible. Slow down the heating rate is good for extending its lifespan. Alumina crucible CAN NOT heated by open fire.

Material: Corundum (Al2O3) Max. Working Temperature: 1600C Max. Capacity: 22ml Size (L*W*H): 102 x 27 x 18mm (4.02" x 1.06" x 0.71") Thickness: 2.5mm (0.10")