Question

How Can We Separate Kerosene Oil Water And Salt?

Answer 1

Hint: A separatory funnel, is a laboratory glassware piece used in liquid-liquid extractions to separate (partition) the components of a mixture into two immiscible solvent phases of different densities. One phase will typically be aqueous, while the other will be a lipophilic organic solvent like ether, MTBE, dichloromethane, chloroform, or ethyl acetate.

Complete answer:
The separating funnel is based on the principle of "like dissolves like," which defines polar solvents' capacity to dissolve polar solutes and nonpolar solvents' capacity to dissolve nonpolar solutes. Each solute migrates to the solvent (sometimes referred to as "phase") in which it is more soluble when the separating funnel is agitated. Because the solvents are immiscible, they do not ordinarily combine to produce a unified solution. The liquids create different physical layers when the funnel is maintained stationary after agitation, with lower density liquids staying above higher density liquids. As a result, a combination of solutes is physically separated into two distinct solutions, each richer in distinct solutes. After the two phases have separated, the stopcock can be opened to allow the bottom layer to leave the separator funnel. The top layer can either be kept in the separating funnel for subsequent solvent extractions or emptied into a separate vessel for other use. If the bottom layer is to be kept in the separating funnel for future extractions, both layers must be removed individually, and the former bottom layer must be returned to the separating funnel. Each separate solution may then be extracted again with new batches of solvent, which may then be employed in other physical or chemical processes. If the purpose was to remove a soluble substance from a mixture, the solution containing the desired product may be evaporated to leave the purified solute behind. As a result, using volatile solvents to extract the required ingredient from the mixture has a practical advantage.
Because kerosene, oil, and water are incompatible liquids, they may be separated using a funnel. Water and salt can be separated via the crystallisation or evaporation processes.
Crystallization is the formation of a solid in which the atoms or molecules are strongly ordered into a crystal structure. Precipitation from a solution, freezing, and, more rarely, direct deposition from a gas are some of the ways crystals form. Temperature, air pressure, and, in the case of liquid crystals, the period of fluid evaporation, all influence the properties of the emerging crystal.

Note:
There are two primary stages to crystallisation. The first is nucleation, which occurs when a supercooled liquid or a supersaturated solvent forms a crystalline phase. The second phase is crystal growth, which is the increase in particle size that leads to the formation of crystals. The formation of layers at the crystal's surface by loose particles, which lodge themselves in open irregularities such as holes and fissures, is a significant characteristic of this stage.