Airfree® Schlenk Cold Addition Funnels

The funnel?s cooling system is a marvel of stress-free design, featuring a large diameter ring seal and an open cup coolant chamber that prevents the dangerous ?blow-back? often associated with other funnels. This allows for the easy addition of coolants, including dry ice chunks. The entire apparatus is made grease-free with Chem-Vac™ Chem-Cap® valves, strategically positioned to allow you to maintain the funnel?s contents under inert conditions before and during use. A sealed-on 14/20 outer joint also provides a dedicated port for syringe sampling, allowing you to monitor the funnel's contents without compromising your pristine atmosphere.

Features:

• Grease-free Chem-Vac™ Chem-Cap® valves on the equalizing arm and lower joint
• Valves allow funnel contents to be kept under inert conditions prior to use
• Large diameter ring seal permits the use of a wide range of coolants, from ice-water to liquid nitrogen
• Open cup coolant chamber design allows for easy addition of dry ice chunks without inblow-back in
• Sealed-on 14/20 outer joint for syringe sampling of the funnel contents
• Drain tube on the rear of the coolant chamber

Designed and Developed By: William J. Swatos and Barton J. Schober, Department Of Materials Science & Engineering, Polymer Science Program, Penn State University