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Zinc Oxide: Fundamental Knowledge of a Versatile Material

Zinc Oxide (ZnO) is a widely used and essential material in the rubber and plastics industries. As a white powder compound, it is highly stable, efficient, and versatile, making it a preferred choice for manufacturers. Below is an overview of zinc oxide’s properties and applications.

1. Basic Properties of Zinc Oxide

  • Also known as: Zinc White, Zinc Oxide Powder
  • Chemical Name: Zinc Oxide (Zinc White)
  • Chemical Formula: ZnO
  • CAS Number: [1314-13-2]

Physical & Chemical Properties

  • Appearance: White hexagonal crystalline powder
  • Relative Density: 5.41–5.67
  • Refractive Index (nd): 2.0041
  • Melting Point: 1975°C
  • Characteristics:
    • Amphoteric oxide, insoluble in water and ethanol
    • Reacts with acids, bases, and amino acids to form salts or complexes
    • Excellent acid and heat resistance
    • Absorbs carbon dioxide and moisture

2. Key Applications of Zinc Oxide

Zinc oxide plays a crucial role in various industries, particularly in rubber and plastics manufacturing. Common applications include:

  1. Rubber Manufacturing: A key activator in the vulcanization process, enhancing strength, abrasion resistance, and aging resistance.
  2. Plastic Additive: Improves UV resistance, extending product lifespan.
  3. Coatings & Ceramics: Used as a pigment and antibacterial agent in coatings; serves as a glaze component in ceramics.
  4. Cosmetics & Medical Products: Due to its antibacterial and antioxidant properties, it is widely used in sunscreens and medicinal ointments.

3. How to Choose the Right Zinc Oxide Supplier

Selecting a reliable zinc oxide supplier is essential for consistent product quality. Key considerations include:

  • Product Type: Determine if “Active Zinc Oxide” is required, as it offers higher surface activity, making it ideal for high-performance rubber and plastic applications.
  • Quality Certification: Choose suppliers with ISO or other international certifications to ensure compliance with industry standards.
  • Zinc Oxide Price Comparison: Prices vary based on purity, particle size, and activity level. Understanding the cost-performance ratio through supplier communication is essential.

4. Factors Influencing Zinc Oxide Prices

Zinc oxide prices are affected by multiple factors, including:

  • Raw Material Supply: Availability of zinc ore impacts pricing.
  • Market Demand: Growing demand in automotive, electronics, and coatings industries drives price fluctuations.
  • Production Technology: Active zinc oxide requires more complex processing, leading to higher costs.
  • Global Supply Chain & Environmental Policies: Changes in supply chains and eco-regulations influence market trends.

Conclusion

As a critical material in the rubber and plastics industries, zinc oxide continues to see growing market demand. Understanding its applications, pricing factors, and how to select high-quality suppliers will help businesses stay ahead in the industry.

If you need more information or are looking for a trusted zinc oxide supplier, feel free to contact us!

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