Introduction to Zinc Ferrites Yellow (PY 119)

Zinc Ferrites Yellow (PY 119) is a high-performance inorganic yellow pigment widely used in ceramics, plastics, paints, coatings, and glass. Known for its excellent thermal and chemical stability, high lightfastness, and soft, earthy yellow tone, PY 119 stands out among other inorganic pigments for its durability and environmental safety. This pigment belongs to the spinel-type ferrite family, where zinc and iron are the main metallic elements contributing to its color properties.

Chemical Composition and Properties

Zinc Ferrites Yellow (PY 119) is chemically composed of zinc oxide (ZnO) and iron oxide (Fe2O3). Its crystalline spinel structure provides excellent heat resistance and UV stability, making it ideal for demanding industrial applications.

• Chemical Formula: ZnFe2O4
• Color Index (CI): PY 119
• Appearance: Soft yellow powder
• Particle Size: Fine, allowing excellent dispersion in various systems
• Heat Resistance: Stable at temperatures up to 1000°C
• Lightfastness: Excellent, even under prolonged UV exposure
• Chemical Resistance: Outstanding resistance to acids, alkalis, and solvents

These features make PY 119 suitable for environments where high performance and long-term durability are required.

Applications of Zinc Ferrites Yellow (PY 119)

Zinc Ferrites Yellow (PY 119) is valued for its stable color performance across a wide range of substrates and processing conditions. Key applications include:

• Ceramics and Glazes: PY 119 offers a warm, stable yellow tone under high-temperature firing conditions, making it ideal for tiles, tableware, and sanitary ceramics.
• Plastics: It is used in plastics for toys, electrical components, and outdoor products due to its UV and thermal stability.
• Paints and Coatings: PY 119 is suitable for architectural coatings, road markings, and industrial finishes, where both durability and color stability are essential.
• Glass Enamels: It provides brilliant yellow coloration in decorative and functional enamel applications.

Advantages of Zinc Ferrites Yellow (PY 119)

1. Non-toxic and Environmentally Safe: PY 119 contains no lead, cadmium, or chromium VI, making it compliant with global safety regulations like RoHS and REACH.
2. High Stability: Withstands harsh chemical and environmental conditions, maintaining color integrity over time.
3. Excellent Dispersion: Fine particle size ensures uniform color distribution and high tinting strength in various matrices.
4. Versatile Applications: Compatible with both solvent-based and water-based systems, suitable for both indoor and outdoor use.

Conclusion

Zinc Ferrites Yellow (PY 119) is a premium inorganic pigment combining environmental safety with excellent physical and chemical stability. Its performance under extreme temperatures and UV exposure makes it a preferred choice in ceramics, plastics, and coatings. With increasing demand for non-toxic, high-durability pigments, PY 119 continues to be a key material for sustainable industrial coloring solutions.