The vibrant world of pigments relies on a sophisticated chain of chemical intermediates. Among these, 3-Hydroxy-2-naphthoic Acid (CAS 92-70-6), also known as BON Acid, is a foundational material for producing high-performance organic pigments. For manufacturers in the pigment sector, understanding the properties and sourcing of this key intermediate is vital for product quality and market competitiveness. This article delves into the significance of BON Acid in pigment production and provides insights for procurement professionals.

The Chemistry Behind Brilliant Pigments

3-Hydroxy-2-naphthoic Acid is a light yellow crystalline powder with a molecular formula of C11H8O3. Its unique structure makes it an ideal coupling component in the azo coupling reaction, a fundamental process in the synthesis of many organic pigments. When BON Acid is diazotized and coupled with various aromatic amines, it yields pigments known for their excellent coloristic properties, including high tinctorial strength, good lightfastness, and superior resistance to chemicals and heat. The calcium and manganese salts derived from BON acid-based azo compounds are particularly prized for their brightness and durability, making them suitable for demanding applications such as automotive coatings, high-quality printing inks, and plastics.

Synthesis and Quality Control

The industrial synthesis of 3-Hydroxy-2-naphthoic Acid typically involves the Kolbe-Schmitt reaction, where carbon dioxide is reacted with the sodium salt of 2-naphthol under high temperature and pressure. Optimizing this process is crucial to minimize impurities like unreacted 2-naphthol and byproducts. For pigment manufacturers, sourcing BON Acid with high purity (typically above 98.5%) and low levels of specific impurities is non-negotiable. These quality parameters directly impact the yield, shade, and performance characteristics of the final pigments.

Why Procure 3-Hydroxy-2-naphthoic Acid?

Pigment manufacturers rely on BON Acid for:

  • Vibrant Color Development: It's essential for producing vivid red, maroon, and violet shades with high chromaticity.
  • Exceptional Durability: The resulting pigments offer excellent resistance to light, weathering, and chemical agents, ensuring long-lasting color integrity in finished products.
  • Formulation Flexibility: BON Acid-based pigments can be formulated into various forms (e.g., presscakes, dispersions) suitable for diverse application systems like solvent-based inks, water-based coatings, and plastics.

Sourcing from a Trusted Manufacturer

As a leading supplier of chemical intermediates, we understand the critical role of BON Acid in your pigment production. We offer high-purity 3-Hydroxy-2-naphthoic Acid (CAS 92-70-6) manufactured to exacting standards. By partnering with us, you ensure access to a reliable supply chain, competitive pricing, and consistent product quality. We encourage pigment producers seeking to buy this intermediate to reach out to us for detailed specifications, pricing, and to discuss your specific needs. Securing your supply of BON Acid is a strategic step towards enhancing your pigment product portfolio.