Sodium Lauryl Sulfate (SLS), scientifically known as Sodium Dodecyl Sulfate (SDS) with CAS 151-21-3, is a cornerstone chemical in modern industry and research. Its remarkable amphiphilic properties make it an exceptionally effective anionic surfactant, driving its widespread use in everything from everyday consumer products to highly specialized laboratory protocols.

At its core, SLS is a sulfate ester of dodecanol. This structure consists of a twelve-carbon alkyl chain (the hydrophobic 'tail') attached to a sulfate group and sodium ion (the hydrophilic 'head'). This dual nature allows SLS to interact with both polar (like water) and non-polar (like oils and grease) substances, making it a powerful detergent, wetting agent, emulsifier, and foaming agent. Manufacturers and formulators value its ability to create stable emulsions and rich lather.

Key Applications of Sodium Lauryl Sulfate:

  • Cleaning and Hygiene: This is perhaps the most recognized application. SLS is a primary ingredient in laundry detergents, dish soaps, hand sanitizers, shampoos, body washes, and toothpaste. Its efficacy in removing dirt and grease is unparalleled in many consumer formulations.
  • Laboratory Research: In molecular biology and biochemistry, SDS is indispensable. It's a key component in SDS-PAGE (Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis), used to separate proteins based on their molecular weight by denaturing them and imparting a uniform negative charge. It's also used in cell lysis buffers to break open cells and extract cellular components. When purchasing for laboratory use, ensuring the correct grade and purity is crucial; many scientific suppliers offer specific grades for research purposes.
  • Pharmaceuticals: SLS acts as an ionic solubilizer and emulsifier in liquid dispersions, tablets, and semi-solid formulations like creams and gels. It also aids in tablet wettability during the manufacturing process. Pharmaceutical companies rely on consistent suppliers for these critical excipients.
  • Food Industry: Approved as a food additive, SLS can function as an emulsifier and whipping aid, particularly in egg white products and marshmallows. Its role ensures product texture and stability.

The production of Sodium Dodecyl Sulfate typically involves the sulfation of lauryl alcohol followed by neutralization. As a major manufacturer and supplier, we ensure that our SDS adheres to strict quality control measures to meet the diverse needs of our B2B clients. Whether you are a formulator seeking bulk quantities for production or a researcher needing high-purity SDS for analytical purposes, understanding these applications helps in making informed purchase decisions. If you're looking to buy Sodium Lauryl Sulfate, consider its specific application and the purity level required. For bulk purchase inquiries, our team is ready to assist you.