vacuum desiccator - ορισμός. Τι είναι το vacuum desiccator
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Τι (ποιος) είναι vacuum desiccator - ορισμός

LABORATORY GLASSWARE CONTAINMENT FOR DRYING OF SUBSTANCES
Dessicator; Vacuum desiccator; Dessiccator; Desicator
  • A '''vacuum desiccator''' (left - note the stopcock which allows a vacuum to be applied), and a '''desiccator''' (right). The blue [[silica gel]] in the space below the platform is used as the [[desiccant]].

Desiccator         
·noun One who, or that which, desiccates.
II. Desiccator ·add. ·noun One that desiccates.
III. Desiccator ·add. ·noun A machine or apparatus for drying fruit, milk, ·etc., usually by the aid of heat; an Evaporator.
IV. Desiccator ·add. ·noun A short glass jar fitted with an air-tight cover, and containing some desiccating agent, as calcium chloride, above which is placed the material to be dried or preserved from moisture.
V. Desiccator ·noun A short glass jar fitted with an air-tight cover, and containing some desiccating agent, as sulphuric acid or calcium chloride, above which is suspended the material to be dried, or preserved from moisture.
Desiccator         
Desiccators are sealable enclosures containing desiccants used for preserving moisture-sensitive items such as cobalt chloride paper for another use. A common use for desiccators is to protect chemicals which are hygroscopic or which react with water from humidity.
vacuum cleaner         
  • Train-mounted vacuum system for track cleaning (France)
  • Wet/dry vacuum for home use
  • The power unit of a typical [[central vacuum cleaner]] for residential use
  • isbn=9780786465521}}</ref>
  • A typical low-cost upright vacuum
  • Patent model of Daniel Hess's carpet sweeper
  • Hoover Constellation of 1960
  • Astronaut [[Tracy Caldwell Dyson]] vacuums equipment on the [[International Space Station]]
  • Kirby]] G5 vacuum cleaner
  • Early electric vacuum cleaner by Electric Suction Sweeper Company, {{circa}} 1908
  • A [[Mid-century modern]] styled canister vacuum
  • USB-powered hand-held vacuum cleaner (promotional giveaway).
  • An early hand-pumped vacuum cleaner
  • Housemaid]] using "dedusting pump", {{Circa}} 1906.
  • A hand-powered pneumatic vacuum cleaner, {{circa}} 1910. An early electric-powered model is also shown
  • A full dustbag. The frame around the opening fastens to the interior end of the cleaner's hose inlet.
DEVICE THAT SUCKS UP DUST AND DIRT FROM FLOORS
Vacuum Cleaner; Vacuum cleaners; Vacuum Cleaners; Wet/dry vacuum; Hoovering; Vaccum cleaner; Dust sucker; Vacuumming; Vacuum cleaning; Vacuum sweeper; Vacuum belt; Vacuum filter; Vacuum Filter; Vacuum machine; Daniel Hess; Hoover Constellation; Shop vac; Shop-vac; Shop Vac; Shop-Vac; Shop vacuum; Shop vacuum cleaner; Vaccuum cleaner; Hoover (vacuum cleaner); Cyclonic vacuum cleaner; Vacuuming; Kruimeldief; Kruimeltjesdief
also vacuum-cleaner (vacuum cleaners)
A vacuum cleaner or a vacuum is an electric machine which sucks up dust and dirt from carpets.
N-COUNT

Βικιπαίδεια

Desiccator

Desiccators are sealable enclosures containing desiccants used for preserving moisture-sensitive items such as cobalt chloride paper for another use. A common use for desiccators is to protect chemicals which are hygroscopic or which react with water from humidity.

The contents of desiccators are exposed to atmospheric moisture whenever the desiccators are opened. It also requires some time to achieve a low humidity. Hence they are not appropriate for storing chemicals which react quickly or violently with atmospheric moisture such as the alkali metals; a glovebox or Schlenk-type apparatus may be more suitable for these purposes.

Desiccators are sometimes used to remove traces of water from an almost-dry sample. Where a desiccator alone is unsatisfactory, the sample may be dried at elevated temperature using Abderhalden's drying pistol.