Shandong Crownchem Industries Co., Ltd., a leading chemical manufacturer with over two decades of expertise, specializes in supplying high-whiteness aluminum hydroxide (Al(OH)₃) to global markets. Renowned for its superior quality and versatile applications, our product meets stringent industrial standards, serving as a critical component in flame retardancy, polymer composites, and advanced material engineering.
Product Overview
High Whiteness Aluminum Hydroxide (CAS 21645-51-2) is a fine, white crystalline powder characterized by its low alkali and iron content, excellent fluidity, and non-toxic properties. As a multifunctional inorganic compound, it combines flame-retardant efficiency with filler performance, making it indispensable across industries such as plastics, rubber, cables, and construction materials.
Key Specifications:
- CAS No.: 21645-51-2
- Appearance: White crystalline powder
- Molecular Formula: Al(OH)₃
- Applications: Flame retardants, polymer additives, coatings, catalysts, and more.
Key Features & Advantages
1. Superior Flame Retardancy
Our aluminum hydroxide acts as an eco-friendly flame retardant by releasing water vapor at high temperatures, effectively diluting combustible gases and suppressing smoke generation. This property is critical for enhancing fire safety in LDPE cable insulation, rubber products, and thermoplastic composites.
2. Enhanced Material Performance
Surface-modified variants improve compatibility with resins, offering dual functionality as both flame retardants and reinforcing fillers. This enhances electrical insulation, arc resistance, and mechanical durability in applications like wire coatings and industrial conveyor belts.
3. High Whiteness & Purity
With optimized production processes, including advanced Bayer method refinement, our product achieves exceptional brightness (≥95% whiteness), ideal for applications requiring aesthetic consistency, such as paints, cosmetics, and toothpaste bases.
4. Eco-Friendly & Safe
As a non-halogenated additive, it aligns with global sustainability trends, reducing environmental impact compared to traditional brominated flame retardants.
Industrial Applications
- Polymers & Plastics: Enhances flame resistance in LDPE, HDPE, and EVA composites while maintaining mechanical integrity.
- Cables & Wires: Improves insulation and fire safety in electrical cable sheaths and telecommunication lines.
- Coatings & Adhesives: Serves as a cost-effective extender in fire-resistant paints and construction adhesives.
- Pharmaceuticals & Cosmetics: Used in antacid formulations and skincare products due to its non-reactive nature.
- Advanced Materials: Functions as a precursor for alumina ceramics, molecular sieves, and water treatment agents.
Why Choose Shandong Crownchem?
- Global Expertise: With exports to 50+ countries, we deliver tailored solutions for diverse industrial needs.
- Quality Assurance: Rigorous testing ensures consistent particle size distribution (D50 < 2µm) and low impurity levels.
- Customization: Offer surface-modified grades (e.g., silane-treated) to optimize compatibility with specific polymer matrices.
- Sustainable Practices: Utilize energy-efficient production methods aligned with international environmental standards.
Technical Support & Packaging
- Packaging: 25 kg/bag (PP+PE lined) or customized options.
- Certifications: ISO 9001, REACH, and RoHS compliance.
- Logistics: Flexible MOQ (1 ton) and reliable global shipping.
Contact Us
For inquiries about high-whiteness aluminum hydroxide or tailored solutions, visit Shandong Crownchem Industries Co., Ltd. Leverage our 20+ years of innovation to elevate your product performance and safety standards.