vacuum filtration

The topic vacuum filtration is discussed in the following articles:

chemical separation

  • TITLE: chemical analysis
    SECTION: Filtration
    ...filter while the precipitate is trapped. When the filter has a small pore size, the normal filtration rate is slow but can be increased by filtering into a flask that is maintained under a partial vacuum. In that instance, fritted glass or glass fibre filters often are used in place of paper filters. Solid-gas filtrations are carried out in the laboratory as well.