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PYREX Kuderna-Danish Tubes (1mL-15mL)
PYREX Kuderna-Danish Tubes (1mL-15mL)

This innovative PYREX capacity jacketed Kuderna-Danish concentrator tube circulates hot water through the jacket to boil the solvent during extraction/concentration. The bottom portion of the tube is never heated, so samples won't boil dry. The concentration automatically stops when the solvent sinks below the jacket. Lab technician time is saved by eliminating the need to watch evaporations closely to avoid boiling dry. Serrated tubulations allow for easy tubing connections.
PYREX Kuderna-Danish Tubes (100mL-125mL)
PYREX Kuderna-Danish Tubes (100mL-125mL)

These innovative PYREX concentrator tubes combine the concepts of a Kuderna-Danish flask and tube into one piece of glass apparatus. The capacity permits sufficient solvent capacity for the full extraction process. They have Standard Taper outer joints, are supplied with one Keck clamp and are designed for use with the PYREX Accelerated One-Step extractor/concentrator, it is jacketed and permits circulation of hot water through the jacket to boil the solvent during extraction/concentration. The bottom portion of the tube is never heated, so the sample won't boil dry. Threaded tubulations on the water jacket are 8mm. I.D. This product requires the assorted hardware (6 connectors and 12 washers) found in No. 2158-CW for use with the threaded tubulations on the water jacket.