About this item

• Vacuum & Inert Gas Applications: designed for vacuum evacuation and inert gas filling, supporting a wide range of laboratory procedures involving air- and moisture-sensitive compounds
• Standard Ground Joint: equipped with a 24/40 inner ground joint for compatibility with common laboratory glassware; 50 ml capacity, supplied as 1 piece per pack
• Round-Bottom Design with PTFE Stopcock: round-bottom reaction tube fitted with a PTFE stopcock for reliable sealing and flow control; compatible with tubing having an inner diameter of 6-9 mm
• Borosilicate 3.3 Glass Construction: manufactured from borosilicate 3.3 glass with low thermal expansion, excellent chemical resistance, and high transparency for clear observation during experiments
• Storage & Maintenance: clean thoroughly after use and store with the stopcock slightly loosened to ensure smooth operation and prevent sticking