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[Chemical Knowledge]：The role of sodium dodecyl sulfate

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Sodium dodecyl sulfate is a surfactant, also known as sodium dodecyl sulfate, or SDS for short. It is a chemical substance with good infiltration, dispersion, emulsification and thickening properties. It has a wide range of applications in industry, biology and medicine. This article will detail the role of sodium lauryl sulfate. Application of

1. Sodium Dodecyl Sulfate in Industry

SDS is a very common surfactant, which is widely used in various industries. It has excellent cleaning, degreasing and decontamination capabilities, so it is widely used in cosmetics, cleaning products, lubricants, pulp and paper manufacturing, paint and coating manufacturing, etc.

Sodium lauryl sulfate is further used for thickening in injection molding, extrusion or blow molding processes. Adding to the plastic raw material can promote better plastic deformation of the plastic material, improve its processability, and finally obtain higher quality plastic products.

In addition, the role of sodium dodecyl sulfate is also very important in the processing of metal products. SDS can be used to dissolve and clean uncleared dirt and deposits on metal surfaces, resulting in higher processing quality and improved efficiency. The application of

2. in the field of biotechnology

SDS also has a wide range of applications in the field of biotechnology. In the life sciences, SDS is often used to prepare and clean proteins. Since SDS can wash away most proteins, it is one of the most commonly used surfactants for protein preparation.

At the same time, in electrophoretic analysis, SDS binds to protein molecules, so that the protein molecules have a negative charge, so that the protein molecules undergo electrophoretic transport. As a result, SDS-PAGE has become one of the most common techniques used by biologists to study protein structure and function. The application of

3. in the medical field

In the medical field, SDS also plays a very important role. In pharmaceutical preparations, sodium lauryl sulfate is a commonly used emulsifier and thickener. In oral medicine, SDS can be used to emulsify to make the drug area larger and promote drug absorption, so as to treat the disease faster.

In addition, in medical laboratories, SDS is also commonly used to wash and clean laboratory equipment to avoid cross-contamination. It is also used in the assay of blood samples to process the blood sample and increase its solution viscosity.

summary

sodium dodecyl sulfate as a surfactant, has a wide range of applications in industry, life science and medicine. It has a variety of functions, including cleaning, dissolving, thickening and emulsifying. These effects make it an essential chemical in many chemical manufacturing and biological laboratories.