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Qué (quién) es avec précipitation - definición
TECHNIQUE
Protein Precipitation; Isoelectric precipitation
Supernatant
![is displaced by]] silver from a [[silver nitrate]] solution it is dipped into, and metallic silver crystals precipitate onto the copper wire.](https://commons.wikimedia.org/wiki/Special:FilePath/Precipitation of Silver on Copper 1.jpg?width=200 "is displaced by]] silver from a [[silver nitrate]] solution it is dipped into, and metallic silver crystals precipitate onto the copper wire.")
![Crystals of ''meso''-tetratolylporphyrin from a [[reflux]] of [[propionic acid]] precipitate on cooling. Photograph of the [[Büchner funnel]] on top of a [[Büchner flask]].](https://commons.wikimedia.org/wiki/Special:FilePath/Tetratolylporphyrin.jpg?width=200 "Crystals of ''meso''-tetratolylporphyrin from a [[reflux]] of [[propionic acid]] precipitate on cooling. Photograph of the [[Büchner funnel]] on top of a [[Büchner flask]].")
CHEMICAL PROCESS LEADING TO THE SETTLING OF AN INSOLUBLE SOLID FROM A SOLUTION
Precipitate; Precipitates; Precipitation reaction; Chemical precipitation; Supernatant; Precipitating; Precipitant; Precipitation reactions; Supranate; Crash out; Supernatent; Supernate; Precipitated; Precipitants; Precipitation (geology); 🝟
·adj Swimming above; floating on the surface; as, oil supernatant on water.
II. Supernatant ·noun The liquid remaining after solids suspended in the liquid have been sedimented by gravity or by centrifugation. Contrasted with the solid sediment, or (in centrifugation) the pellet.
precipitate
CHEMICAL PROCESS LEADING TO THE SETTLING OF AN INSOLUBLE SOLID FROM A SOLUTION
Precipitate; Precipitates; Precipitation reaction; Chemical precipitation; Supernatant; Precipitating; Precipitant; Precipitation reactions; Supranate; Crash out; Supernatent; Supernate; Precipitated; Precipitants; Precipitation (geology); 🝟
v. (d; tr.) to precipitate into (to precipitate a country into war)
precipitate
CHEMICAL PROCESS LEADING TO THE SETTLING OF AN INSOLUBLE SOLID FROM A SOLUTION
Precipitate; Precipitates; Precipitation reaction; Chemical precipitation; Supernatant; Precipitating; Precipitant; Precipitation reactions; Supranate; Crash out; Supernatent; Supernate; Precipitated; Precipitants; Precipitation (geology); 🝟
¦ verb pr?'s?p?te?t
1. cause (an undesirable event) to happen unexpectedly or prematurely.
2. cause to move suddenly and with force.
(precipitate someone/thing into) send someone or something without warning into a particular state or condition.
3. Chemistry cause (a substance) to be deposited in solid form from a solution.
cause (drops of moisture or particles of dust) to be deposited from the atmosphere or from a vapour or suspension.
¦ adjective pr?'s?p?t?t done, acting, or occurring suddenly or without careful consideration.
¦ noun pr?'s?p?t?t, -te?t Chemistry a substance precipitated from a solution.
Derivatives
precipitable adjective
precipitately adverb
precipitateness noun
precipitator noun
Origin
C16 (orig. 'hurl down, send violently', later 'cause to move rapidly'): from L. praecipitat-, praecipitare 'throw headlong', from praeceps, praecip(it)- 'headlong', from prae 'before' + caput 'head'.
Wikipedia
Protein precipitation
Protein precipitation is widely used in downstream processing of biological products in order to concentrate proteins and purify them from various contaminants. For example, in the biotechnology industry protein precipitation is used to eliminate contaminants commonly contained in blood. The underlying mechanism of precipitation is to alter the solvation potential of the solvent, more specifically, by lowering the solubility of the solute by addition of a reagent.
