For procurement specialists and R&D scientists in the chemical and detergent industries, understanding the precise specifications of raw materials is not just a matter of detail; it's fundamental to ensuring product quality, performance, and safety. Linear Alkyl Benzene Sulfonic Acid (LABSA) is a prime example where grasping its specifications can lead to more informed and successful purchasing decisions.

Perhaps the most commonly cited specification for LABSA is its purity, typically stated as 96%. This percentage refers to the active matter, meaning the proportion of the compound that provides the desired surfactant properties. A higher active matter content generally translates to better performance and potentially lower overall cost per unit of active ingredient. The appearance, usually described as a brown viscous liquid, is another observable characteristic that buyers often confirm.

The Chemical Abstracts Service (CAS) registry number is a unique identifier for chemical substances. For LABSA, this number is 27176-87-0. Using the CAS number is critical when searching for the product or when communicating with suppliers, as it eliminates ambiguity and ensures that everyone is referring to the exact same chemical compound. This is especially important in international trade where nomenclature can sometimes vary.

Beyond purity and CAS number, other specifications frequently encountered when evaluating LABSA include: the level of unsulfonated matter, which refers to unreacted starting materials; free sulfuric acid content, which can affect pH and corrosivity; and water content. For specific industrial applications, parameters like color (measured, for example, on the Klett scale) and viscosity might also be important.

When engaging with manufacturers or suppliers, especially those in regions like China known for competitive pricing, it is essential to request comprehensive technical data sheets (TDS) and certificates of analysis (COA). These documents provide the detailed breakdown of specifications for a particular batch of LABSA. For instance, a TDS might list typical values, while a COA confirms the actual measured values for a specific shipment, providing assurance for your purchase.

By paying close attention to these specifications – purity, CAS number, appearance, and other physical and chemical properties – buyers can confidently select the most suitable LABSA for their needs, whether it's for high-performance detergents, industrial cleaning solutions, or other specialized applications. This diligent approach to specification understanding is a hallmark of effective chemical procurement.