Sodium Dodecyl Benzene Sulfonate (SDBS) is not a one-size-fits-all chemical. Available in various forms and concentrations, selecting the correct grade of SDBS is crucial for achieving optimal performance in your specific application. As a leading manufacturer and supplier of SDBS, we guide you through the critical specifications that buyers should consider when making a purchase decision. Whether you're formulating detergents, textile auxiliaries, or other industrial products, understanding these nuances will ensure you buy the most suitable product.

Understanding SDBS Grades: Active Matter and Form

The primary differentiator among SDBS grades is the active matter content, typically ranging from 30% to 90%. Common designations include LAS-60, LAS-70, LAS-80, and LAS-90, indicating the percentage of active anionic surfactant. For powder forms, a higher active matter percentage like LAS-90 often signifies greater efficiency and less inert material, which can be advantageous for concentrated formulations. The physical form is also important; while this article focuses on powder, SDBS is also available as liquids or pastes, each suited for different handling and application methods. For powdered formulations, suppliers often offer products like LAS-P70 or LAS-P90, specifically designed for ease of incorporation.

Key Specifications to Consider for Purchase

When you decide to buy SDBS, pay close attention to specifications beyond just the active matter content. These include:

  • Appearance: Typically described as white or light yellow powder. Consistency in appearance is a good indicator of quality.
  • Moisture Content: Low moisture is preferable, especially for powder grades, as high moisture can affect flowability and stability.
  • pH Value: The pH of a standard solution (e.g., 1% in water) should fall within a specified range, usually between 7.0 and 11.5, indicating neutrality or slight alkalinity.
  • Bulk Density: This can influence handling and storage considerations.
  • CAS Number: The most common CAS number for sodium dodecylbenzene sulfonate is 25155-30-0, ensuring you are procuring the correct chemical entity.

Choosing a Reliable Supplier

The quality and consistency of your SDBS directly depend on your supplier. When looking to purchase SDBS powder, prioritize manufacturers that provide comprehensive product data, including detailed specifications and safety data sheets. A reputable supplier will have robust quality control measures in place and a history of reliable delivery. Many businesses opt for Chinese manufacturers due to competitive pricing and large production capacities. Ensure your chosen supplier can provide batch-specific CoAs and is responsive to inquiries regarding product use and handling. By carefully evaluating these factors, you can confidently buy SDBS that meets your exact formulation requirements.