Linear alkylbenzene sulfonate

When sourcing LAS, the most critical parameter is the Active Matter content, which typically ranges from 90% to 96% for the sulfonic acid form (LABSA). You must also verify the Free Oil (Unsulfonated Matter) content, which should be below 2.0% to ensure high surfactant efficiency. Additionally, monitor the Color (Hazen/APHA); high-quality LAS should have a low Klett value (typically <50) to prevent discoloration in final detergent formulations. For liquid applications, check the Water Content and Inorganic Acid (Sulfuric Acid) levels, ensuring they meet your specific formulation stability requirements.

As a chemical product, LAS must be accompanied by a comprehensive Material Safety Data Sheet (MSDS) compliant with the GHS (Globally Harmonized System). For entry into the EU, REACH registration is mandatory. If the product is intended for eco-friendly detergents, look for Biodegradability certifications (OECD 301 series), confirming that the LAS is aerobically and anaerobically biodegradable. Furthermore, ensure the manufacturer holds ISO 9001 for quality management and ISO 14001 for environmental management to guarantee consistent batch quality and sustainable production.

The choice depends heavily on the end-product. For heavy-duty laundry powders, a high-active LABSA 96% is preferred for its cost-efficiency and ease of neutralization during dry-neutralization processes. For liquid dishwashing detergents or shampoos, buyers should prioritize low-salt and low-color grades to maintain transparency and skin mildness. In industrial cleaning or textile processing, the focus shifts to wetting power and emulsification stability, where technical-grade LAS with specific carbon chain distributions (typically C10-C13) is optimized for rapid soil removal.

Linear Alkylbenzene Sulfonic Acid is classified as a Class 8 Corrosive Substance (UN 2586). It must be shipped in UN-approved packaging, such as HDPE drums (210kg/225kg) or IBC tanks (1000kg). Ensure the shipping line accepts hazardous cargo and verify that the Dangerous Goods (DG) Declaration is accurate. To prevent leakage during long-transit maritime shipping, request reinforced container lashing and avoid storage in high-temperature zones on the vessel, as heat can lead to product darkening or polymerization.

To secure your investment, utilize Trade Assurance services provided by reputable platforms like Made-in-China.com, which offer payment protection and shipping guarantees. Always conduct a Pre-Shipment Inspection (PSI) through third-party agencies like SGS or Intertek to verify the active matter percentage and color index before the balance payment is released. For new suppliers, start with a sample test (1-5kg) followed by a trial order (FCL) to evaluate the consistency of the chemical properties across different batches.

LAS prices are highly sensitive to the cost of raw materials (Benzene and Paraffin). Negotiate based on formula-based pricing linked to global petrochemical indices if you are a high-volume buyer. Inquire about volume-based discounts; typically, orders exceeding 80 metric tons (4x20GP) can command a 3-5% price reduction. Additionally, discuss payment terms; while T/T is standard, established buyers can often negotiate L/C (Letter of Credit) at sight to improve cash flow and reduce financial risk.