The 10/20/25/30/50/100ml Lab Super High Purity Quartz Glass Crucible with lid is made of super pure quartz glass, which ensures excellent heat resistance and chemical stability. It comes with a lid, which ensures better heat retention and protection. This silica crucible is suitable for laboratory use at temperatures up to 1200 degrees. With various sizes available, including 10ml, 20ml, 25ml, 30ml, 50ml and 100ml, it is ideal for various applications in scientific research and experimentation.