Freeze Drying Flasks
Freeze drying flasks are used in conjunction with freeze-drying instruments to facilitate sample lyophilization. A complete freeze drying flask assembly consists of a top, a bottom, and filter paper.
The flask bottom is typically cylindrical in shape and is manufactured from high-strength borosilicate glass that can withstand extreme temperature and high vacuum conditions. The top contains an opening that connects to an adapter for attachment of the flask to freeze-drying valves on the instrument. The filter paper fits into the top of the flask to prevent product loss during freeze drying.
Freeze drying flasks hold samples during low-temperature dehydration or lyophilization. The samples are frozen, a vacuum is applied, and the moisture is removed by sublimation. Freeze drying flasks are typically used in conjunction with specific freeze-drying equipment.
Freeze drying can produce better quality and more easily rehydrated samples because they are not subjected to high temperatures.
Heat-sensitive nutrients, flavors, and smells are retained, making it useful for food preservation. Freeze dried products, especially pharmaceuticals, benefit from the microscopic pores left by sublimated ice crystals, which help them rehydrate more readily. Lyophilized products are lighter without the water content and are less expensive to ship.
Other lyophilized biological products include microorganisms, vaccines, cell extracts, antihemophilic factors, interferon, streptokinase, and allergenic extracts.
Labconco™ Fiasche Fast-Freeze™, solo fondo piano
High-strength borosilicate glass bottom to withstand extreme temperatures and high vacuum.
Labconco™ Lyph-Lock™ Freeze-Dry Flask Assembly
Complete three-piece flask consists of high-strength borosilicate glass molded top and bottom with silicone rubber seal
Labconco™ Lyph-Lock™ Flask Bottom
Made of borosilicate glass to withstand extreme temperatures and high vacuum
Labconco™ Lyph-Lock™ Freeze-Dry Flask Assembly with Standard Taper 19/38 Joints
A complete Lyph-Lock Flask includes a glass top and bottom and a rubber ring.
Pyrex™ Trappola fredda in vetro borosilicato Quickfit™
Freezes volatile materials and vapors onto the cold surface. Pyrex™ Quickfit™ Borosilicate Glass Cold Trap Head prevents materials from damaging vacuum pumps.
Labconco™ Fast-Freeze™ Flask Bottom, 750mL
Withstands extreme temperatures and high vacuum. Labconco™ Fast-Freeze™ Flask Bottom, 750mL is a replacement flask in clear borosilicate glass for use in Labconco™ drying chambers and manifolds. Cap and adapter sold separately.
Labconco™ Fiasche Fast-Freeze™, solo tappi in gomma
For use with Fast-Freeze Flasks
Labconco™ Fast-Freeze™ Flasks, Complete Assembly
Used in the freeze drying process. Labconco™ Fast-Freeze™ Flasks, Complete Assembly is easy to handle and fast to load samples during the experiments.
Labconco™ Fast-Freeze Flask Bottom Only, Amber
Used in the freeze drying process and compatible with all major brands of freeze-drying equipment. Labconco™ Fast-Freeze Flask Bottom Only, Amber is made of high-strength borosilicate glass to withstand extreme temperatures and high vacuum.
Labconco™ Lyph-Lock™ Flask Seal
Three-piece flasks for freeze drying samples. Provides a high-vacuum seal for efficient lyophilization.
Labconco 500, 750 and 1000 ml Lyph-Lock Flask Seal
Flexible silicone rubber seal grasps the top and bottom of the Lyph-Lock flask.
Labconco™ Lyph-Lock™ Flask Top
Three-piece flasks for freeze drying samples. Provides a high-vacuum seal for efficient lyophilization.