Zinc Oxide

Zinc Oxide (ZnO, Zinoxi Extra Pure 9970) 

1. Basic Information

• Molecular Formula: ZnO

• CAS Number: 1314-13-2

• Molecular Weight: 81.39 g/mol

• EINECS: 215-222-5

• Appearance: White to pale yellow powder or nanopowder

• Melting Point: 1975 °C

• Boiling Point: ~1950 °C (estimated)

• Flash Point: 27 °C

• Density: 5.6 g/cm³

• Water Solubility: 1.6 mg/L at 29 °C

• Refractive Index: 2.008–2.029

• Storage Temperature: +5 °C to +30 °C

• Stability: Stable; incompatible with magnesium and strong acids

• Packaging: 25 kg kraft bag, 750–1000 kg big bag

• Synonyms: Zinc white, Activox, ZINKOXYD AKTIV, Pigment White 4, Zinci Oxidum, Actox14

2. Grades & Purity

• White Seal: Standard purity, suitable for industrial applications.

• Gold Seal: High purity, preferred in cosmetics, pharmaceuticals, and ceramics.

3. Application Areas – Sectoral Summary

• Cosmetics: UV filter, skin protectant, antiseptic; used in sunscreens, creams, mineral makeup.

• Pharmaceuticals: Topical protectant, astringent, antiseptic; used in ointments, powders, dental cements.

• Personal Care: Baby creams, deodorants, soaps; odor control and skin barrier.

• Rubber Industry: Vulcanization accelerator, anti-aging agent, reinforcing filler.

• Paints & Coatings: White pigment, UV absorber, anti-corrosive additive, flexibility enhancer.

• Ceramics & Glass: Fluxing agent, brightness enhancer, thermal shock resistance.

• Textiles: Filler and antimicrobial finish; adds whiteness and durability.

• Plastics & Polymers: UV stabilizer, antioxidant, antimicrobial additive.

• Metal Surface Treatment: Corrosion protection, electrical resistance booster.

• Agriculture & Fertilizer: Micronutrient zinc source; foliar and soil applications.

• Animal Feed: Zinc supplement for immunity and growth.

• Batteries & Electronics: Storage batteries, piezoelectric devices, semiconductors.

• Analytical Chemistry: Reagent in qualitative and quantitative analysis.

• Flame Retardants: Used in plastics and coatings to reduce flammability.

• Pigments & Inks: White pigment in oil paints, printing inks, paper coatings.

• Catalysis & Synthesis: Catalyst support, nanostructured metal oxide applications.

• Nanomaterials: Nanopowders, dispersions, advanced ceramics.

4. Historical Highlights

• Used in Ancient India and Greece for eye and skin treatments.

• Mentioned by Avicenna (1025) for dermatological use.

• Adopted in 19th-century Europe as zinc white pigment in oil painting.

• Industrial use expanded in the 20th century: rubber, copy paper, electronics.

5. Sectoral Compatibility Table