While 1,4-Dihydroxyanthraquinone is widely recognized for its critical role as an intermediate in dye synthesis, its direct application as an industrial colorant is equally significant. Known commercially as Solvent Orange 86 or Quinizarin (CAS 81-64-1), this orange crystalline powder offers robust coloring properties that are leveraged in sectors beyond textiles. For manufacturers seeking to add consistent and vibrant hues to their products, understanding the direct applications of this compound is essential.

Coloring Plastics and Resins: Aesthetics and Identification

The inherent vibrant orange color of 1,4-Dihydroxyanthraquinone makes it an effective colorant for a variety of polymers, including plastics and resins. When incorporated into these materials, it imparts a consistent and appealing orange hue, enhancing the aesthetic appeal of finished products. This is particularly valuable in consumer goods, packaging, and automotive components where visual distinction and branding are important. The stability of the anthraquinone structure contributes to good lightfastness and thermal stability within the polymer matrix, ensuring the color remains vibrant over time. Procurement professionals looking to buy Solvent Orange 86 for plastic and resin coloration can benefit from its excellent dispersibility and coloring power.

Industrial Fuels and Oils: Marking and Identification

A key direct application of 1,4-Dihydroxyanthraquinone is in the coloration of industrial fuels and oils. In this context, its primary function is for identification and marking purposes. By adding a distinct color, it allows for easy differentiation between various types of fuels, lubricants, or industrial solvents. This is crucial for operational safety, preventing accidental mixing of incompatible substances, and for regulatory compliance in some regions. The solubility of Solvent Orange 86 in oils and fuels makes it an ideal candidate for this application. Manufacturers in the petrochemical and industrial lubricant sectors often source this compound from reliable suppliers to ensure clarity and safety in their product lines.

Sourcing Considerations for Direct Coloring Applications

When using 1,4-Dihydroxyanthraquinone as a direct colorant, factors like purity, particle size, and dispersibility become critical. While the 99% purity grade might be preferred for highly sensitive applications, the 96% grade often provides excellent coloring performance at a more economical price point for general industrial use. Manufacturers who can offer consistent product quality, along with detailed technical data sheets and samples, are ideal partners. Inquiring about bulk pricing and ensuring that the supplier can meet the required volumes is a standard procurement practice. Companies looking to purchase this chemical for direct coloring should engage with established manufacturers in China, who are known for their competitive pricing and extensive production capabilities.

In conclusion, beyond its role as a dye intermediate, 1,4-Dihydroxyanthraquinone (CAS 81-64-1) is a valuable colorant in its own right. Its application in coloring plastics, resins, and industrial fuels highlights its versatility and importance in various manufacturing processes. By understanding these direct uses and focusing on quality sourcing from reputable suppliers, industries can effectively leverage the coloring power of Solvent Orange 86.