Desiccant - Drying of Solvents

Drying of Solvents

See also: air-free technique

Desiccants are also used to remove water from solvents, typically used for moisture free reactions (e.g. the Grignard reaction). The method generally, though not always, involves stirring the solvent with the desiccant.

Often, the desiccant will react with moisture to form an insoluble solid that can be removed by filtration. When a very pure solvent is required, a distillation still is used to remove moisture and other impurities simultaneously.

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