The most temperature-resistant, chemical-resistant, corrosion-resistant containers available. TeflonŽ PFA is inert to virtually all chemicals except molten alkali metals, fluorine at elevated temperatures and certain complex halogenated compound. Bottles with closure withstand temperatures from -270 to 250°C. Translucent bottles allow liquid levels to be seen. Linerless, leakproof closure made of TeflonŽ PFA for a positive seal. Before autoclaving, just set cap or closure on top of the container without engaging the threads. (N1630)