CoorsTek 65631 High-Alumina Disc, 25mm OD, 2mm Thick

This CoorsTek AD-998 High-Alumina labware disc is made of 99.8%-pure aluminum oxide. It is highly resistant to chemical attack. This alumina-ceramic ware is especially useful to chemists, metallurgists, and others involved in high-temperature work demanding contamination-free results. AD-998 ware is highly refractory, meant for use in reducing and oxidizing atmospheres. It is inert in hydrogen and carbonaceous atmospheres and offers high resistance to alkalies and other fluxes. It is suitable for glass melting, including borosilicate glass. Recommended for use with refractory metals such as molybdenum, platinum, rhodium, tungsten, tantalum and iridium. High-Alumina Labware temperature change rate should not exceed 150º C/hour.