Overview
Sodium Lauryl Sulfate (SLS) is an anionic surfactant widely used in personal care and industrial applications. It is known for its excellent foaming and cleaning properties. SLS is derived from coconut or palm oil and is commonly found in household and industrial cleaning products. Due to its affordability and effectiveness, SLS is a staple in formulations requiring strong detergency. However, its use in personal care products has been debated due to potential skin irritation, leading to the development of milder alternatives.
Physical and Chemical Properties
SLS is a white or cream-colored powder or crystalline solid with a molecular weight of 288.38 g/mol. It has a density of 1.01 g/cm³ and melts at 204-207 °C. SLS is highly soluble in water, forming a clear to slightly hazy solution. The compound acts as a strong surfactant, reducing surface tension and enabling effective emulsification and foaming. Its chemical stability under normal storage conditions makes it suitable for long-term use in various formulations.
Main Applications
SLS is primarily used in detergents, shampoos, and toothpaste due to its foaming and cleaning capabilities. In industrial settings, it serves as an emulsifier in polymerization processes and a wetting agent in textile and agricultural chemicals. Beyond cleaning products, SLS is utilized in pharmaceuticals and cosmetics as a solubilizing agent. Its versatility and cost-effectiveness make it a preferred choice in bulk chemical procurement for manufacturers across multiple industries.
Safety and Storage
SLS can cause skin and eye irritation upon direct contact, necessitating the use of gloves and goggles during handling. Prolonged exposure may lead to dermatitis, so proper ventilation and protective measures are essential. Storage should be in a cool, dry place, away from moisture and oxidizing agents. SLS is stable under normal conditions but may degrade if exposed to extreme temperatures or incompatible substances. Always refer to the SDS for detailed safety guidelines.
B2B Procurement Guide
When procuring SLS, prioritize suppliers who provide detailed product specifications, including purity levels (typically 90-99%). Request a Certificate of Analysis (COA) to verify quality and consistency. Bulk purchases often yield cost savings, but ensure proper storage facilities are available. Consider alternative surfactants like SLES (Sodium Laureth Sulfate) for milder formulations. Always confirm regulatory compliance, especially for products intended for consumer markets.
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