Laboy Glass 100mL Round Bottom Schlenk Flask with 0-4mm High Vacuum Valve – Heavy Wall Borosilicate Reaction Vessel for Inert Atmosphere Synthesis & Schlenk Line Applications

This storage flask is with a high vacuum valve at Top and a glass tube at side. The tube O.D. is 70mm, the tube length is 200mm.Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree Celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.

• SUPERIOR REACTION VESSEL (OPTIMIZED FOR HEATING) – Unlike cylindrical Schlenk tubes, this 100mL Round Bottom Flask design ensures uniform heat distribution, eliminating hot spots during reflux. It creates a superior vortex for magnetic stirring, making it the ideal choice for complex chemical synthesis rather than just passive storage.
• PRECISION 0-4mm HIGH VACUUM VALVE – Features a specialized, hand-ground high vacuum valve that provides precise control over your inert atmosphere (Nitrogen/Argon). It enables airtight sealing for the storage of air-sensitive compounds and prevents oxidation, ensuring zero leakage even under high vacuum conditions.
• HEAVY-WALL BOROSILICATE GLASS – Hand-blown from premium Borosilicate 3.3 glass, this flask is engineered to withstand thermal shock and direct flame heating (when properly setup). The heavy-wall construction offers enhanced durability against the mechanical stress of Schlenk line manipulations and vacuum cycling.
• VERSATILE SCHLENK LINE COMPATIBILITY – The side arm is designed for seamless integration with standard vacuum manifolds and Schlenk lines. While Schlenk tubes are for transfers, this flask gives you the "Best of Both Worlds": the connectivity of a Schlenk apparatus combined with the reaction efficiency of a traditional round bottom flask.
• PROFESSIONAL LAB GRADE SPECS – Capacity: 100mL | Valve Size: 0-4mm | Material: Borosilicate Glass. Perfect for organic chemistry research, organometallic synthesis, and handling volatile solvents or pyrophoric materials.