DURAN® Glass Stopper, clear, with short standard ground joint, octagonal

DURAN® Glass Stopper, clear, semi-hollow, ST 29/22 discontinued item Semi-hollow, short-length, clear DURAN® glass stoppers can be used to close glassware items such as flasks or reagent bottles with ground joint necks. The Standard Taper ground glass joint forms a tight, leak-proof seal. Use grease for heating or vacuum applications. With octagonal shaped head. Note on using DURAN® glass stoppers with soda-lime glass bottles: If the bottle and the stopper have a temperature difference greater than 30 °C, the glass stoppers can become stuck! Features and Benefits: All DURAN® glass components and therefore suitable for storage of aggressive materials Tight closure due to standard ground joint Octagonal shaped head Semi-hollow Short-length Application: Storage of air sensitive reagents, and chemicals, Storage of hygroscopic solids, granules and powders, Sealing laboratory glassware such as flasks, reagent bottles, and mixing cylinders more