Product Introduction
Aluminum hydroxide, with the chemical formula Al(OH)3, is a white, odorless powder or crystalline solid. It is a key inorganic compound with versatile properties, playing a crucial role in multiple industries. As a weakly basic substance, it exhibits excellent flame - retardant, adsorptive, and catalytic - support capabilities, making it indispensable in fields like plastics, chemicals, and environmental protection.
Product Specification
| Al(OH)3-content |
[%] |
≥99.6 |
| SiO2 |
[%] |
≤0.02 |
| Fe2O3 |
[%] |
≤0.02 |
| Na2O(total) |
[%] |
≤0.35 |
| Na2O(soluble) |
[%] |
≤0.01 |
| Loss on ignition |
[%] |
34.5±0.5 |
| Free moisture |
[%] |
≤0.40 |
| Particle size (Laser diffraction) |
D50(μm) |
2.0-3.0 |
| Bulk density |
kg/m3 |
280-450 |
| Whiteness (Elrepho457nm) |
[%] |
≥98 |
| Electrical conductivity |
μs/cm |
≤60 |
| Refractive index |
|
1.58 |
| Mohs hardness |
|
3 |
Packaging & Shipping
Product Application
1. Flame Retardant Industry
- Plastics & Rubbers: Added to PP, PE, EVA, and silicone rubber. Acts as a non - halogen flame retardant-decomposes at high temps to release H2O (cools materials, dilutes combustible gases) and forms Al2O3 char (blocks oxygen, suppresses smoke). Typical addition: 30 - 60% (adjusted for UL94 V - 0 ratings).
- Building Materials: Mixed into PVC pipes, insulation boards, and coatings. Enhances fire resistance, meets GB 8624 (China) and ASTM E84 (US) standards for low - smoke, non - toxic fire protection.
2. Chemical & Catalysis
- Catalyst Support: Used in petrochemicals (e.g., FCC catalysts for oil refining). Porous structure disperses active metals (e.g., Pt, Pd), boosting catalyst efficiency in reactions like hydrocracking.
- Intermediate for Alumina: Calcined to produce Al2O3 (feedstock for aluminum smelting, ceramic fibers, and LED substrates).
3. Environmental Protection & Water Treatment
- Wastewater Purification: Adsorbs heavy metals (e.g., Pb²+, Cu²+) and fluoride ions. Adjusts pH in acidic wastewater, used in mining, electroplating, and semiconductor industries.
- Air Purification: Loaded with catalysts to decompose VOCs (e.g., formaldehyde) in industrial exhausts, improving air quality.
4. Other Niche Uses
- Pharmaceuticals: Used as an antacid (neutralizes gastric acid, OTC formulations like "aluminum hydroxide gel").
- Ceramics & Refractories: Lowers firing temperature, enhances thermal shock resistance in porcelain and kiln linings.
This product combines safety, efficiency, and adaptability-your reliable partner for flame retardancy, catalysis, and environmental solutions.
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