Overview: All SPI Supplies Brand PTFE bottles are chemically inert, non-contaminating, and are thermally stable in the range of -200°C (390°F) to + 280°C (+536°F). The bottles also have a "super smooth" finish making it virtually impossible for anything to "stick" to the surface of these fine laboratory products. Make sure you understand why we can no longer call these Teflon® bottles and must refer to them only as PTFE bottles.
Details of the manufacturing: The bottles are isostatically molded from pure virgin PTFE resulting in a highly inert material, with very heavy wall construction, one that will stand up to nearly everything one might want to put into it. The super smooth internal finish means that virtually nothing will really stick to it. The base is precision machined for good heat transfer on a hot plate. The screw cap houses a PTFE encapsulated "O" ring seal for total leak-free performance. As if this were not enough, there are also mini-hand grips for ease of handling.
Cautions about over heating: PTFE beakers can not be taken to temperatures as high as glass. The user has to be sure they do not overheat PTFE beakers. If PTFE is overheated, especially in air, it can start to break down by both thermal decomposition and oxidation, resulting in fumes of HF which should not be inhaled under any circumstances.
Use in connection with food: Isostatically molded in pure, FDA approved, PTFE
Important Safety Notice: Do not use when sealed for chemical reactions or digestions. Loosen lid when thermally sterilizing.
* Available while supplies last
