Mixed liquids, moisturizing emulsions, and aqueous solutions are three of the most common substances in organic chemistry. What is the difference between suspensions and emulsions and aqueous solutions? Let’s share the differences between mixed liquids, moisturizing emulsions, and aqueous solutions. Below, we will conduct a simple understanding and comprehension of this issue, hoping that the following points will be of some help to everyone!

1. Stop

We understand that when soil is put into water, the soil will quickly sink to the bottom. If it is shaken, a turbid liquid will be obtained. Solid small particles composed of many molecules float in the liquid, making the entire liquid turbid. This liquid is unstable. After standing for a while, the small particles will slowly sink down. The compound produced by floating small solid particles in a liquid is called a mixture.

2. Emulsion

Pour edible oil into water, shake vigorously, and obtain a milky white turbid liquid. In this liquid, there are small non-dissolving water liquids, which are also composed of many molecules. These liquids are all unstable. After standing still, due to the fact that small droplets are generally lighter than water, they will slowly float up and form two layers. The compound produced by dispersing such small liquids into a liquid is called a hydrating emulsion.

3. Solution

Dissolving granulated sugar or salt in water, the obtained liquid is different from a mixture and a hydrating emulsion. They are transparent and uniform. The granulated sugar molecules are uniformly dispersed in the water, and the small particles of salt (potassium ions and gas-positive ions) are also uniformly dispersed in the water. These two liquids are very stable. If the temperature does not change, water does not easily evaporate. No matter how long it is placed, granulated sugar or Dongtai is not easily extracted from the water. This kind of uniform and stable compound produced by dispersing one or more substances into another substance is called a solution. The substance that dissolves other substances is called an organic solvent. The substance that is dissolved is called molar concentration. A solution is composed of organic solvent and molar concentration. That is, solution = molar concentration + organic solvent.

Water is the most common organic solvent, which can dissolve many substances, but it is not the only organic solvent, such as ethanol, gasoline, etc. It can also be used as an organic solvent. For example, ethanol can dissolve iodine, and gasoline can dissolve vegetable oils, etc. Different molar concentrations dissolve differently in the same organic solvent. Different organic solvents can dissolve different molar concentrations.

Molar concentration can be solid, liquid, or gas. When solid and gas dissolve in a liquid, the solid and gas are molar concentration, and the liquid is an organic solvent. When two liquids dissolve into each other, the larger one is generally called an organic solvent, and the smaller one is called molar concentration. For some solutions, molar concentration and organic solvent are relative. For example, when alcohol and water dissolve into each other, it is generally ethanol that is the molar concentration, and water is the organic solvent; if less water dissolves in ethanol, ethanol is the organic solvent, and water is the molar concentration.

In laboratories or organic chemical production, some solid experimental reagents are generally prepared into solutions, allowing many reactions to take place in the solution.

Solutions that can conduct electricity are called electrolyte solutions, such as silver nitrate solution. Compounds that can conduct electricity in the solution or molten state are called electrolyte solutions, such as sodium thiosulfate.