High school chemistrySimilar to the solubility principle
[core definition]
Similar phase solubility is the solubility of polar molecules due to their electrical effects
Solvents that are soluble in polar molecules, soluble in nonpolar molecules; nonpolar molecules
The composition of the solvent is soluble in solvents made up of non-polar molecules and in solvents made up of polar molecules. Example
For example, water is a polar molecule and ethanol is also a polar molecule, so ethanol is soluble in any proportion to water
Iodine, which is a non-polar molecule with very little solubility in water, is soluble in non-polar solutions such as carbon tetrachloride
In the agent。
It's the origin and development of the principle
Similar principles of phase-out can be traced back to observations and summaries of material solubility. Earlyization
As scientists study the mixing of different substances, they find patterns, and they come up with similar solubility
One principle. In-depth study of molecular structure and inter-moleculular dynamics as the science of chemistry continues to develop
It further reveals the essence of similar principles of solubility. From the initial qualitative description to the subsequent ability to
Quantitative analysis is carried out at the molecular level, and the application of the doctrine in the chemical field is becoming more widespread and in-depth。
Core application area
Solvent formulation: in the laboratory, we often have to choose the appropriate method based on a similar symmetry
The solvent that makes the solution. For example, when making copper sulphate solution, because copper sulphate is an ion compound
There is a degree of polarity, so water is usually chosen as a solvent。
Separability and purity of substances: separating of substances can be achieved using similar symmetry. For example, in..
In the extraction experiment, the use of carbon tetrachloride to extract iodine from iodized water was due to its dissolution in carbon tetrachloride
Much more solubility in water。
Chemical reactions: many chemical reactions need to be carried out in solution, and understanding of similar phase-of-solvation principles helps
Select the appropriate solvent to allow the reaction to be fully dissolved, thereby facilitating the reaction. For example, some have
The aircraft reaction needs to be performed in organic solvents to ensure better exposure of the reactor and the catalyst。
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