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Pneumatic trough

A pneumatic trough is a piece of laboratory apparatus used for collecting gases, such as hydrogen, oxygen and nitrogen. It is mainly made of glass or various fibres and are of various sizes. It was invented by Stephen Hales.[1]

Pneumatic trough with bulb suspended from hanger, as invented by Stephen Hales

Description edit

Four items are required for gas collection with a pneumatic trough:[2]

  • The trough itself, which is a large glass dish or a similar container.
  • A gas bottle (or bulb), to hold the gas collected.
  • A way to support the gas bottle or bulb, such as a beehive shelf or a hanger (as with Stephen Hales' design).
  • A liquid in the trough.

Liquid edit

Pneumatic troughs require a liquid such as water. Scientists also have used mercury in pneumatic troughs, but usually only for the collection of water-soluble gases. Health and safety issues surrounding mercury generally prohibit its use in modern-day pneumatic troughs.[3]

Usage edit

 
Pneumatic trough, and other equipment, used by Joseph Priestley

The bottle is filled with water, inverted, and placed into the pneumatic trough already containing water. The outlet tube from the gas-generating apparatus is inserted into the opening of the bottle so that gas can bubble up through it, displacing the water within.[4]

See also edit

References edit

  1. ^ , vol. 1, 2022-08-21, p. 2, archived from the original (PDF) on 2022-08-21, retrieved 2022-08-21
  2. ^ Günther, Matthias; Joemann, Michael; Csambor, Simon. "Chapter 5: Parabolic Trough Technology" (PDF). Advanced CSP Teaching Materials. 5 (12): 10. (PDF) from the original on 2022-07-09. Retrieved 2022-08-21 – via University of Kassel.
  3. ^ Tang, Can; Gong, Peng; Xiao, Taishi; Sun, Zhengzong (2021-12-13). "Direct electrosynthesis of 52% concentrated CO on silver's twin boundary". Nat Commun. 9 (21): 12. doi:10.1038/s41467-021-22428-1. PMC 8035331. PMID 33837209.
  4. ^ "Impact of a water-filled bottle". abaqus-docs.mit.edu. Massachusetts Institute of Technology. from the original on 2022-08-21. Retrieved 2022-08-21.

Further reading edit

  • Parascandola, John; Ihde, Aaron (1969). "History of the Pneumatic Trough". Isis. 60 (3): 351–361. doi:10.1086/350503. S2CID 144799335.

pneumatic, trough, pneumatic, trough, piece, laboratory, apparatus, used, collecting, gases, such, hydrogen, oxygen, nitrogen, mainly, made, glass, various, fibres, various, sizes, invented, stephen, hales, with, bulb, suspended, from, hanger, invented, stephe. A pneumatic trough is a piece of laboratory apparatus used for collecting gases such as hydrogen oxygen and nitrogen It is mainly made of glass or various fibres and are of various sizes It was invented by Stephen Hales 1 Pneumatic trough with bulb suspended from hanger as invented by Stephen Hales Contents 1 Description 1 1 Liquid 2 Usage 3 See also 4 References 5 Further readingDescription editFour items are required for gas collection with a pneumatic trough 2 The trough itself which is a large glass dish or a similar container A gas bottle or bulb to hold the gas collected A way to support the gas bottle or bulb such as a beehive shelf or a hanger as with Stephen Hales design A liquid in the trough Liquid edit Pneumatic troughs require a liquid such as water Scientists also have used mercury in pneumatic troughs but usually only for the collection of water soluble gases Health and safety issues surrounding mercury generally prohibit its use in modern day pneumatic troughs 3 Usage edit nbsp Pneumatic trough and other equipment used by Joseph PriestleyThe bottle is filled with water inverted and placed into the pneumatic trough already containing water The outlet tube from the gas generating apparatus is inserted into the opening of the bottle so that gas can bubble up through it displacing the water within 4 See also editEudiometer Pneumatic chemistry Joseph PriestleyReferences edit Pneumatic Trough Labappara scientific instrument vol 1 2022 08 21 p 2 archived from the original PDF on 2022 08 21 retrieved 2022 08 21 Gunther Matthias Joemann Michael Csambor Simon Chapter 5 Parabolic Trough Technology PDF Advanced CSP Teaching Materials 5 12 10 Archived PDF from the original on 2022 07 09 Retrieved 2022 08 21 via University of Kassel Tang Can Gong Peng Xiao Taishi Sun Zhengzong 2021 12 13 Direct electrosynthesis of 52 concentrated CO on silver s twin boundary Nat Commun 9 21 12 doi 10 1038 s41467 021 22428 1 PMC 8035331 PMID 33837209 Impact of a water filled bottle abaqus docs mit edu Massachusetts Institute of Technology Archived from the original on 2022 08 21 Retrieved 2022 08 21 Further reading editParascandola John Ihde Aaron 1969 History of the Pneumatic Trough Isis 60 3 351 361 doi 10 1086 350503 S2CID 144799335 nbsp This science article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Pneumatic trough amp oldid 1163469813, wikipedia, wiki, book, books, library,

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