For professionals in the chemical and pharmaceutical industries, a deep understanding of a compound's properties and specifications is fundamental to successful application and procurement. 2,6-Naphthalene Disulfonic Acid (CAS 581-75-9) is one such compound, and knowing its characteristics ensures optimal use and informed purchasing decisions. This article provides a detailed look at its key attributes.

Chemical Identity and Structure

2,6-Naphthalene Disulfonic Acid, identified by CAS number 581-75-9, has the molecular formula C10H8O6S2 and a molecular weight of approximately 288.30 g/mol. Its structure consists of a naphthalene core with two sulfonic acid groups (-SO3H) attached at the 2 and 6 positions. This arrangement dictates its chemical reactivity and physical properties.

Key Physical and Chemical Properties

  • Density: Predicted density is around 1.704 g/cm³. This value is useful for material handling and process design.
  • pKa: The predicted pKa of -0.41 is indicative of a strong acidic nature, typical for sulfonic acids. This property is important for reactions conducted in aqueous solutions and pH considerations.
  • Solubility: While not explicitly detailed in all sources, sulfonic acids are generally soluble in water due to the polar nature of the sulfonic acid groups.
  • Stability: Information on specific stability conditions is crucial for storage and handling. As a general guideline, like many organic acids, it should be stored in a cool, dry place away from incompatible materials.
  • Hazard Information: According to GHS classifications, it may cause severe skin burns and eye damage (H314), necessitating appropriate handling precautions such as wearing protective gloves and eye protection. Proper safety data sheets (SDS) from the manufacturer are essential.

Specifications for Industrial Purchase

When a procurement manager or a research scientist looks to buy 2,6-Naphthalene Disulfonic Acid, they will typically evaluate the product based on several specifications:

  • Purity: While some sources indicate 95% purity, higher grades may be available depending on the manufacturer and application. For sensitive syntheses or precise tracer studies, higher purity (>98%) is often preferred.
  • Packaging: Common packaging includes 25kg drums or as per customer request, ensuring safe transport and storage.
  • CAS Number Verification: Confirming the CAS number (581-75-9) is the first step to ensure you are sourcing the correct isomer and compound.

Sourcing from Manufacturers and Suppliers

As a leading supplier in China, we ensure that our 2,6-Naphthalene Disulfonic Acid meets stringent quality requirements. When you inquire about pricing or availability, our team can provide detailed specifications and certificates of analysis. Understanding these properties allows our clients, whether they are formulation chemists or R&D scientists, to confidently integrate our product into their processes.

By understanding the chemical properties and specifications of 2,6-Naphthalene Disulfonic Acid, B2B customers can make more informed decisions, ensuring they purchase the right material for their intended applications and from a reliable 2,6-Naphthalene Disulfonic Acid manufacturer.