Sodium N-lauroylsarcosinate, with the CAS number 137-16-6, is a widely used surfactant in various industries. It appears as a white to light - yellow powder or viscous liquid. The chemical formula of Sodium N-lauroylsarcosinate is C₁₅H₂₈NNaO₃. It has good solubility in water, and is stable under normal temperature and pressure conditions. This product is usually supplied in high - purity forms, meeting strict quality standards for industrial applications.
It is a mild anionic surfactant, which means it has relatively low irritation to the skin and eyes compared to some other surfactants. It is hypoallergenic and is often favored for products targeting sensitive skin users. The pH value of its aqueous solution typically ranges from 7.5 - 9.5, which makes it suitable for a wide range of formulations.
In the personal care industry, Sodium N-lauroylsarcosinate is a key ingredient in many skin and hair care products. In shampoos, it can effectively clean the scalp and hair, removing dirt and excess sebum while maintaining the natural moisture of the hair. It gives the hair a soft, smooth, and shiny appearance. In facial cleansers, its mild nature makes it ideal for cleansing the delicate facial skin without causing dryness or irritation. It can also be used in body washes to provide a gentle and refreshing cleansing experience.
In the industrial cleaning field, it is used in metal cleaning agents. It can remove oil, grease, and dirt from metal surfaces effectively without corroding the metal. In the textile industry, it can be used as a scouring agent to remove impurities from fabrics during the manufacturing process. Additionally, it is used in the formulation of some agricultural pesticides as an adjuvant to improve the spreadability and adhesion of the pesticides on plants.
When using Sodium N-lauroylsarcosinate in personal care product formulations, it is usually added in the water - phase of the formulation. First, heat the water to an appropriate temperature (usually around 60 - 80°C) to ensure good solubility. Then, slowly add the Sodium N-lauroylsarcosinate powder or liquid to the water while stirring continuously until it is completely dissolved. After that, other ingredients of the formulation can be added according to the specific recipe.
In industrial cleaning applications, the product can be diluted with water in a certain ratio depending on the degree of soiling. For light - soiled surfaces, a lower concentration (e.g., 1 - 3%) may be sufficient, while for heavy - soiled surfaces, a higher concentration (up to 10%) may be required. It can be applied to the surface by spraying, soaking, or wiping.
Case 1: A well - known shampoo brand incorporated Sodium N-lauroylsarcosinate into its new shampoo formula. Before the change, customers often complained about hair dryness and scalp irritation after using the old formula. After replacing a portion of the original surfactant with Sodium N-lauroylsarcosinate, customer feedback improved significantly. The new shampoo was found to be more gentle on the scalp, and users reported that their hair felt softer and more manageable. Sales of the shampoo also increased by 20% within three months of the formulation change.
Case 2: An industrial metal cleaning company used Sodium N-lauroylsarcosinate in its metal degreasing agent. They were previously using a traditional strong - alkaline degreaser that was causing corrosion on some of the metal parts. By switching to a formula containing Sodium N-lauroylsarcosinate, not only was the degreasing efficiency maintained, but the problem of metal corrosion was completely eliminated. This led to better customer satisfaction and a reduction in product returns.
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