DISCONTINOUS EXTRATION Thatiana Santana Saints Federal University of Sergipe SUMMARY This work constituted in the discontinous extration of three diluted solid reagents in solvent organic. The extration of each one was made using a solvent extractor that reacted with the composition to be extracted, using the different densities of the components in solvent relation to the organic one that if found with the remains, being after, neutralized and recouped. Word-key: Discontinous extration. Solvent Extracting Orgnico.Solvente. ABSTRACT This work was discontinued in the extraction of three solid reagents dissolved in organic solvent. The extraction of each one was made using an organic solvent that reacted with the compound you be extracted using the different densities of components in relation you organic solvent that was with to other, to after being neutralized and recovered.
Keywords: Discontinous Extraction. Solvent Extracting Orgnico.Solvente. 1. INTRUDUO the technique of discontinous extration with solvent reagents use the different solubilities of existing composites, where one of the solvents is added by some times guaranteeing a profitable final result. The substance diluted with the adequate extractor will present greater density facilitating its isolation of the system.
For better extration it would be ideal that the solvents are imiscveis, being able to be carried through the process of multiple extration. The operation of discontinous extration is common in the laboratories, therefore it consists of extracting a organic substance of a solvent watery solution using a organic one that if it does not mix water. The substance in presence of two solvents if distributes in amounts that remain constant. Through the definition of Lewis, acid electrons pair of and base are defined as receiving of as givers of pair of electrons, this facilitates the work of neutralization of the components to be isolated of the process. The point of fusing of a crystalline solid is the band of temperature in which the solid it starts if to become liquid under the atmospheric pressure.