The product we are discussing is Factory Supply Lithium Dodecyl Sulfate with CAS number 2044-56-6. Lithium dodecyl sulfate is an anionic surfactant. It is a white or off - white powder at room temperature.
Some of its key physical and chemical parameters are as follows:
- Molecular formula: C₁₂H₂₅LiSO₄
- Molecular weight: approximately 272.3 g/mol
- Solubility: It is soluble in water, forming a clear solution. And it also has certain solubility in some polar organic solvents.
- Stability: Under normal storage conditions, it is relatively stable. However, it should be kept away from strong oxidizing agents to prevent chemical reactions.
Lithium dodecyl sulfate has a wide range of applications in various industries:
**In the field of analytical chemistry**: It is commonly used as a surfactant in electrophoresis. In gel electrophoresis, it can help to solubilize proteins and other biological macromolecules, and also play a role in maintaining the stability of the electrophoretic system, enabling more accurate separation and analysis of samples.
**In the field of detergents and cleaning agents**: Due to its good emulsifying, dispersing and foaming properties, it can be used in the formulation of high - efficiency detergents. It can effectively remove dirt and oil stains on various surfaces, such as in household laundry detergents and industrial cleaning agents.
**In the field of cosmetics**: It can be used as an emulsifier and foaming agent in some cleansing products, such as facial cleansers and body washes. It can provide a rich and fine foam, and at the same time, its mildness is relatively high, which is suitable for many skin types.
When using lithium dodecyl sulfate, the following steps should be followed:
**Preparation**: Wear appropriate personal protective equipment, such as gloves and goggles, to avoid direct contact with the skin and eyes. First, calculate the required amount of the product according to the specific application requirements.
**Dissolution**: Slowly add the lithium dodecyl sulfate powder to the appropriate amount of solvent (usually water). Stir continuously during the addition process to ensure complete dissolution. The dissolution process may require a certain amount of time and gentle heating can be used if necessary to accelerate dissolution, but the temperature should not be too high to avoid decomposition of the product.
**Adjustment**: After dissolution, adjust the pH and concentration of the solution according to the specific process requirements. For example, in electrophoresis applications, the pH of the buffer solution needs to be carefully adjusted to ensure the accuracy of the experiment.
**Case 1: Protein electrophoresis in a biological research laboratory**
A research team was conducting a study on a specific protein. They prepared a buffer solution containing lithium dodecyl sulfate for SDS - PAGE (Sodium Dodecyl Sulfate - Polyacrylamide Gel Electrophoresis). By using lithium dodecyl sulfate, they found that the protein samples were well - solubilized, and the separation effect on the gel was significantly better than when using some other surfactants. The clear protein bands obtained on the gel helped them accurately analyze the molecular weight and purity of the target protein, which was crucial for their subsequent research on the protein's function.
**Case 2: Industrial cleaning agent formulation**
A cleaning products manufacturer was developing a new type of industrial degreaser. They added lithium dodecyl sulfate to the formula. After testing, they found that the degreaser had excellent emulsifying and cleaning capabilities. It could quickly remove stubborn oil stains on metal surfaces in industrial workshops. The product was well - received in the market due to its high efficiency and environmental - friendliness compared to some traditional cleaning agents.
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Este es William, CEO de Zhishang Chemical Co., Ltd.
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