Experimental device for removing water in organic solvent

The utility model discloses an experimental device for removing water in an organic solvent. The experimental device mainly comprises an electric heater, a round-bottom flask, a constant-pressure dropping funnel with a branch tube, a condenser tube, a liquid sealing bottle and a gas sampling bag, wherein the round-bottom flask is directly connected with the constant-pressure dropping funnel with the branch tube; the constant-pressure dropping funnel with the branch tube is connected with the condenser tube; and the condenser tube is connected with the liquid sealing bottle through a glass adapter plug and a latex tube and then is connected with the sampling bag through a connecting tube. The experimental device is simple in structure; the constant-pressure dropping funnel with the branch tube is adopted to distill and store a water-containing organic solvent, thus volume of the experimental device is effectively reduced; meanwhile, a liquid seal and a gas bag are adopted to isolate air, thus an oxygen-free environment of the system is maintained and a water separating and drying effect of the organic solvent is effectively improved; and the experimental device has the characteristics of simple operation and convenient use.