Solvent Distillation Heads, Airfree, Schlenk

Still head in 125mL or 500mL capacity for use in re-purification of solvents under inert atmosphere.  One-piece design of condenser and storage reservoir eliminates multiple connections usually associated with distillation setup.  0-4mm Chem-Vac™ Chem-Cap® valves provide for grease-free, leakproof seals.  Lower 3-way valve (C) allows for solvent return to flask, take-off or storage in graduated reservoir.  Syringe access port (B) incorporates a 4mm PTFE stopcock with a 14/20 outer joint for use with CG-3022 septum stoppers permitting repeated syringe punctures or changes of the septum without breaching the integrity of the solvent.  Valve (A) allows for isolation of the still from the inert gas source.  Valve (D) permits evacuation and purging of the receiver flask.  Uptake tube (F) is a 24/40 inner joint, while the takeoff connection (E) is a 14/20 inner joint.