It is a vacuum desiccator, and therefore it is along with a stopcock. The sturdy glass top fits easily on the thick lip of the desiccator, and features a knob handle for removing or replacing the lid. Desiccators can be used, though not exclusively, for preserving moisture-sensitive items, protecting hygroscopic or water-reacting chemicals, as well as removing traces of water from samples that need drying. I.D.: 180mm Total height : 270mm Diameter of porcelain plate: 150mm.
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