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