PFA. Transparent. With standard ground joint. Suitable as safety flask for use with rotary evaporators (operation at room temperature) to collect the distilled off liquid. Outstanding chemical resistance, can be used with strong oxidants, highly concentrated acids and bases, hydrocarbons and ketones. High thermal stability, from - 200 to + 260 °C. PFA. Transparent. With standard ground joint. Suitable as safety flask for use with rotary evaporators (operation at room temperature) to collect the distilled off liquid. Outstanding chemical resistance, can be used with strong oxidants, highly concentrated acids and bases, hydrocarbons and ketones. High thermal stability, from - 200 to + 260 °C.