Flask used in the distillation process.
This model can also be found in collection of lab equipment used in distillation. It can be found on Turbosquid if you search for Simplicity3D. There is a scene with a Leibig condenser.
As the liquid has been created separately you can edit it to change colour etc. If you open the material editor you will see the material called "liquid". You can make changes here if required.