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Both in everyday life and in the scientific field, there are very frequent mixtures involving a solid element and another liquid, usually the first acting as an element to be dissolved and the second as a dissolution space. This distribution is merely proportional, and the majority substance acquires the name of solvent while the minority the name of solute.
In some occasions the joining process is simple, while in others the use of specially constituted devices is required. In the food, cosmetic, pharmaceutical and chemical industries, the mixer is often used, which recirculates the solid through a tank, being placed manually or automatically in a hopper. This is common for mixes that would be very difficult to prepare manually.
As with the other types of mixes, the solutions of solids in liquids They can be presented in different ways according to the characteristics of these elements:
- Solutions: They will be solutions if the formation is produced by the disaggregation of the solid down to the molecular or ionic level. The solids that are part of the solutions often react well in some solutes and badly in others.
- Suspensions: Suspensions are called those that do not reach the state of dissolution because the particles of the solid can be seen with the naked eye or with a microscope: this gives the compound a cloudy appearance.
- Colloids: Colloids are those combinations whose particles, although they can only be seen under an electron microscope, together make up a clear appearance that denotes the presence of a solid in combination with a liquid.
- Gels: Finally, gels are the solid-liquid combinations that constitute an intermediate state, formally not complying with the characteristics of either of the two groups. Many of these appear in everyday life, such as cheese, gelatin or some inks.
The mixtures between solids and liquids, like the other classes, they also have different ways of being separatedScience has been very involved in the pursuit of this objective, since it becomes fundamental for many purposes that it has. The processes by which this division is carried out are:
- Centrifugation: The same technique for removing water in dishwashers or clothes washers.
- Crystallization: The total elimination of the solvent, by means of a vaporization rapid, procedure used to obtain common salt.
- Chromatography: Drag of substances by the action of a rising liquid, the filtration (passage of the compound through a special paper that filters the solid).
- Sedimentation: Procedure of leaving the mixture at rest, characteristic of solutions in which the solid is suspended in water.
See also: Examples of Solutions
Examples of Mixtures of Solids and Liquids
| Syrups |
| Cement (mix of water with sand) |
| Petroleum |
| Powder juices |
| Mud (typical mixture of cloudy character) |
| cheese |
| Blood (colloidal mixture) |
| Broth |
| Yogurt (usually in a colloid-like state) |
| Ink with alcohol |
| Mix of washing powder and water |
| Egg white (suspension) |
| Saline solution (water and salt) |
| Filter coffee |
| Dairy formulas (protein and water) |
More examples of mixes?
- Examples of Mixtures
- Examples of Gas Mixtures with Gas
- Examples of Gas Mixtures with Liquids
- Examples of Mixtures of Gases with Solids
