DURAN® Glass Stopper, amber, solid, ST 12/21
Semi-hollow or solid amber DURAN® glass stoppers can be used to close glassware items such as flasks, separatory funnels 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:

• USP/EP UV light protection due to external amber colouration
• Very durable and chemically resistant amber colour
• All USP Type 1 glass components and therefore suitable for storage of pharmaceutical API materials
• All USP glass components and therefore suitable for storage of corrsive and aggressive materials
• Tight closure due to standard taper ground joint
• Octagonal shaped head

Application: Storage of light sensitive reagents, pharmaceuticals, and chemicals, Storage of air sensitive reagents, and chemicals, Storage of hygroscopic solids, granules and powders, Storage of pharmaceutical APIs, Sealing laboratory glassware such as flasks, reagent bottles, and mixing cylinders