Perform a variety of liquid phase separations with translucent and autoclavable Thermo Scientific™ Nalgene™ Polypropylene Separatory Funnels. Good chemical compatibility with a wide range of laboratory solutions involved in liquid-liquid extractions. Polypropylene closure and TFE stopcock require no lubrication. These separatory funnels are impact resistant and won't chip or shatter, making them a valuable asset to lab safety programs.