1314-13-2 | Zinc Oxide (ZnO)

Chemical type

• Transition metal oxide; semiconductor oxide catalyst

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• Reflective mineral additive
• White/NIR-reflective pigment
• Chemically reactive filler

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Key properties

• Moderate basicity
• Good thermal stability
• Enhanced activity when doped (e.g., Co-doped ZnO)
• High surface reactivity in nanoscale form

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• Wide bandgap and strong refractive index in VIS-NIR
• NIR-selective scatterer (NIR reflectance 0.81-0.88 in doped forms)
• High solar reflectance (0.91 in textile coatings)
• MIR emissivity of 0.93
• Causes pronounced hydration retardation and pore coarsening
• High intrinsic lattice conductivity
• Relative density 5.61
• Purity 100 wt%
• pH 6.95-7.37
• Melting point 1975 °C
• Photocatalytic effect in UV band

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• Heterogeneous nanocatalyst for biodiesel transesterification
• Catalyst for biodiesel synthesis from edible and non-edible oils

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• Additive in cement-slag composites for urban heat island mitigation (limited to ≤1 wt% due to retardation)
• Pigment in radiative-cooling coatings and textiles
• NIR reflector in humidity-tolerant polymer coatings
• Functional admixture for antimicrobial properties in cement composites
• Cool-color applications in yellow-doped forms

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Classification by use

• Chemicals used as nanocatalysts
• Chemicals used in biodiesel transesterification
• Chemicals used in renewable energy production

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• Cool materials for passive cooling
• Reflective pigments in coatings, paints, and textiles
• Mineral additives in cementitious composites with rheological and strength considerations
• Photocatalytic and antimicrobial agents in building materials

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A trustworthy factory and manufacturer

1. [Cite:1] Sustainable inorganic nanocatalysts in biodiesel production - A review on recent developments, Fuel Processing Technology, Volume 282, April 2026, 108406
2. [Cite:2] Barium sulphate and zinc oxide as reflective mineral additives in cement-slag composites for urban heat island mitigation: Effects on fresh, optical, thermal, and mechanical properties, Construction and Building Materials, Volume 506, 13 January 2026, 145006