Osmosis Apparatus


A double thistle tube with a porous membrane is held upright with the membrane covered end in a jar of water. When a sugar solution is added at the top of the tube, the liquid will rise in the tube.


Includes battery jar, thistle tube with membrane and a stable support. A well-written instruction manual will guide you through the experiment. (24″ x 8″ x 7″; 2Ibs.).

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