precipitante
A precipitant, in chemistry, is a substance that promotes the formation of a solid from a solution, known as a precipitate. Precipitation takes place when the solubility of one or more dissolved species is exceeded, causing an insoluble salt or compound to separate from the solution. The precipitant can act by supplying a component of the insoluble salt, by altering the solution conditions (such as pH or redox state), or by forming a complex that reduces the solubility of the target species.
In inorganic analytical chemistry, precipitants are selected to selectively remove a particular ion. For example, silver
In biochemistry and protein chemistry, precipitants such as ammonium sulfate, polymers, or organic solvents are used
Key considerations when selecting a precipitant include the desired selectivity, the tolerance of other ions in