Polytetrafluoroethylene Constant Pressure Separatory Funnel, 250ml, Resistant To Strong Acid And Alkali. (CAT#: STEM-FU-0008-TP)

Different from other separatory funnels, the constant pressure separatory funnel can keep the internal pressure constant. One is to prevent sucking back, the other is to make the liquid in the funnel flow down smoothly, and the third is to reduce the influence of the increased liquid on the gas pressure, so that the gas volume can be measured more accurately.