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Decantation can be used to separate immiscible liquids that have different densities. For example, when a mixture of water and oil is present in a beaker, after some time a distinct layer between the two liquids is formed, with the oil layer floating on top of the water layer. This separation can be
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has settled out—is poured off, leaving denser liquid or the solid behind. The process typically is unable to remove all of the top layer, meaning the separation is incomplete or at least one of the two separated components is still contaminated by the other one.
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to the bottom of the container; if the force is high enough, solids can aggregate to form pellets, making it easier to separate the mixtures. Then the liquid can be more easily poured away, as the precipitate will tend to remain in its compressed form.
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done by pouring oil out of the container, leaving water behind. Generally, this technique gives an incomplete separation as it is difficult to pour off all of the top layer without pouring out some parts of the bottom layer.
197:. In the synthesis of high quality silver nanowire (AgNW) solutions and fabrication process of high performance electrodes, decantation is also being applied which greatly simplifies the purification process.
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is an alternative apparatus for separating liquid layers. It has a valve at the bottom to allow draining off the bottom layer. It can give better separation between the two liquids.
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Cream accelerates to the top of milk, allowing the separation of milk and cream. This is used in the cheese industry. Fat is determined in butter by decantation.
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to pull the solid fragments to settle at the bottom of the container. In laboratory situations, decantation of mixtures containing solids and liquids occur in
504:"Improvements in purification of silver nanowires by decantation and fabrication of flexible transparent electrodes. Application to capacitive touch sensors"
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To obtain a sample of clear water from muddy water, muddy water is poured into another container, which separates the water from the mud.
502:
Mayousse, Céline; Celle, Caroline; Moreau, Eléonore; Mainguet, Jean-François; Carella, Alexandre; Simonato, Jean-Pierre (25 April 2013).
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Mercury is disposed of in water bodies during mining, turning the water unfit and toxic. The mercury can be removed through decantation.
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machine may also be used in decantation as the natural process of settling down is time-consuming and tedious. A centrifuge forces the
126:. To enhance productivity, test tubes should be placed at a 45° angle to allow sediments to settle at the bottom of the apparatus.
570:
Shih, Lu,Yuan, Chiang and Chia-Hui Lin1, Chih-Hsin; Lu, Chien-Hsing; Yuan, Wei-Li; Chiang, Wei-Ling; Lin, Chia-Hui (March 2011).
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The process of deriving vinegar also requires decantation to remove fats and biomolecular antioxidants from the raw substance.
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to absorb water from an organic liquid, the organic liquid can often be decanted away from the desiccant.
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into granular sugar involves many liquid–solid separations; e.g. separation of syrups from crystals.
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418:"A Comparison of the Decantation Method with Other Methods for the Determination of Fat in Butter"
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Decantation is frequently used to purify a liquid by separating it from a suspension of
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Illustration from a 1918 article telling why solids settle faster in a slanted tube
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crystals to avoid unsavory taste). This makes the wine more tonic and astringent.
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Plasma can be separated from blood through decantation by using a centrifuge.
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Decantation can also separate solid and liquid mixtures by allowing
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458:"Applications of decanter centrifugals in the beet sugar process"
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60:. The layer closer to the top of the container—the less
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Overman and
Okimoto, O.R. and Saichi (February 1920).
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liquids or of a liquid and a solid mixture such as a
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may be used for continuous solid-liquid separation.
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The
Journal of Industrial and Engineering Chemistry
572:"Supernatant decanting on a centrifugal platform"
64:of the two liquids, or the liquid from which the
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304:"Decantation Definition and Examples"
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392:"20 examples of Liquid Decanting"
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193:Decantation is also present in
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30:For the decanting of wine, see
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282:"Separation and purification"
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90:Immiscible liquid separation
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361:"The Ritual of Decanting"
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422:Journal of Dairy Science
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50:separation of mixtures
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48:is a process for the
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1024:Alchemical processes
1019:Analytical chemistry
889:Fractionating column
684:Acid–base extraction
665:Separation processes
254:"What is decanting?"
186:, the processing of
171:potassium bitartrate
709:Cyclonic separation
365:The Washington Post
346:10.1021/ie50104a027
252:Helmenstine, Todd.
157:Decantation of wine
143:decanter centrifuge
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824:Sublimation
714:Decantation
546:"Decanting"
466:23 February
441:22 February
401:22 February
330:"Decanting"
188:sugar beets
135:precipitate
66:precipitate
46:Decantation
998:Categories
948:Multiphase
879:Evaporator
864:Centrifuge
754:Filtration
749:Extraction
689:Adsorption
679:Absorption
550:Libretexts
340:(8): 631.
234:References
131:centrifuge
124:test tubes
58:suspension
54:immiscible
962:Azeotrope
672:Processes
308:ThoughtCo
258:ThoughtCo
202:desiccant
163:insoluble
77:Processes
976:Concepts
967:Eutectic
919:Scrubber
894:Leachate
774:Leaching
719:Dialysis
606:21522503
531:23619480
286:Bitesize
217:See also
149:Examples
70:sediment
32:Decanter
950:systems
847:Devices
794:Osmosis
597:3082350
555:1 March
370:1 March
313:1 March
263:1 March
182:In the
120:gravity
734:Drying
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288:. BBC.
18:Decant
929:Still
507:(PDF)
461:(PDF)
62:dense
624:link
620:link
602:PMID
557:2018
527:PMID
489:help
468:2018
443:2018
403:2018
372:2018
315:2018
265:2018
167:wine
592:PMC
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
