Chemglass Round Bottom Flask 100 ml 2-Neck CN-14/20 SN-14/20 - Lot of 5 Flasks

The Chemglass CG-1520-49 is a precision 100 mL Round Bottom Flask designed for small-scale synthetic chemistry and applications requiring a versatile, multi-port setup. Unlike larger standard glassware, this model is equipped with two identical 14/20 ground glass joints for both the center neck and the side neck, making it compatible with a wide range of microscale or "Small-Scale" laboratory components. The flask is manufactured from high-grade borosilicate glass, which provides the thermal durability necessary for high-vacuum applications and extreme temperature fluctuations common in organic synthesis. Its spherical "round bottom" geometry is engineered for optimal heat transfer and uniform stirring, preventing hot spots that could lead to sample degradation or uneven reaction rates.

The secondary angled neck is a critical feature for researchers who need to perform simultaneous operations, such as adding reagents via a dropping funnel while maintaining a reflux condenser on the center neck. This dual 14/20 configuration is particularly convenient as it allows for the interchangeable use of thermometers, gas inlet adapters, and condensers across both ports without the need for size adapters. This specific offering is provided as a lot of 5 flasks, making it an ideal choice for outfitting a research lab or maintaining a consistent supply of essential glassware for high-throughput experiments. The precision-ground joints ensure a leak-proof seal when properly greased or used with PTFE sleeves, which is vital for maintaining an inert atmosphere when working with air-sensitive compounds.

Used, in good condition.