Shandong taixing is an Aluminium Hydroxide ( Al(OH)3 CAS No. 21645-51-2 ) china manufacturer with highy quality and low price since 1998 . we produce several types Aluminium Hydroxide, including precipitated aluminum hydroxide ,Aluminum hydroxide (ground type), Low-viscosity Aluminum Hydroxide , these products can be used as flame retardant in plastic and rubber products .
Fine Precipitated Aluminium Hydroxide.( Al(OH)3, CAS No. 21645-51-2 ) is one type ATH with ultrafine particle size, regular crystal structure, high-purity, high whiteness, low surface activity and small specific surface area, Fine Precipitated Aluminium Hydroxide. can be widely used in various of processing technology.
Ultra fine precipitated aluminum hydroxide: the cornerstone of high-performance materials
In the field of materials science, ultrafine precipitated aluminum hydroxide is becoming an indispensable key material in many industries due to its unique properties and wide applications. It is a type of aluminum hydroxide prepared through a special process, with a microstructure and excellent properties that are completely different from ordinary aluminum hydroxide.
From the appearance, ultrafine precipitated aluminum hydroxide presents a delicate white powder with a uniform texture and pure color. This delicate texture is not only an external feature, but also a manifestation of its inherent high quality. At the microscopic level, its particles are extremely small with uniform particle size distribution, which is difficult for ordinary aluminum hydroxide to achieve. Its average particle size can usually reach the micrometer or even nanometer level. Such small particles enable it to be more evenly dispersed when mixed with other materials, greatly improving the performance of composite materials.
In terms of chemical composition, it still maintains the basic chemical structure of aluminum hydroxide, with the chemical formula Al (OH) ∝. This chemical structure endows it with a series of unique chemical properties. It is a typical amphoteric hydroxide that can react with acids to form aluminum salts and water, as well as react with strong bases to form aluminum salts and water. This special chemical property allows it to play an important role in different chemical reaction systems, exhibiting good chemical activity and adaptability in both acidic and alkaline environments.
In terms of physical properties, ultrafine precipitated aluminum hydroxide has high whiteness, with a whiteness value usually reaching over 95%. This makes it suitable for applications with high color requirements, such as plastics, rubber, coatings, etc., without adversely affecting the color of the product, but instead improving its aesthetic appeal. At the same time, it also has a low oil absorption value, which is of great significance in practical applications. A lower oil absorption value means that during use, it can reduce the adsorption of other additives (such as plasticizers, lubricants, etc.), ensuring that these additives can fully exert their effects and improve the overall performance of the product. In addition, it also has good thermal stability and will not undergo significant decomposition or deformation within a certain high temperature range, which provides a guarantee for its application in high-temperature processing.
The application fields of ultrafine precipitated aluminum hydroxide are extremely wide. In the flame retardant industry, it is an important environmentally friendly flame retardant. When added to various polymer materials, it undergoes decomposition reactions under heating, absorbing a large amount of heat, thereby reducing the surface temperature of the material and delaying its combustion rate. At the same time, the water vapor generated by decomposition can dilute combustible gases, isolate oxygen, and further suppress the progress of combustion. This efficient flame retardant performance makes it widely used in products such as wires and cables, building materials, electronic appliances, etc., providing reliable protection for people's life and property safety. In the plastic industry, it can be used as a filler. Due to its small particles and good dispersibility, it can improve the hardness, strength, and dimensional stability of plastic products without affecting their original processing properties, while reducing production costs. In the paper industry, it can be used to produce high-end paper, which can improve the whiteness, opacity, and printing adaptability of the paper, making it smoother and more delicate, and enhancing the quality of the paper.
Physical and Chemical Properties
General Properties
| Molecular Weight | 78 |
| Density | 2.42 g/cm3 |
| Crystal System | Monoclinic System |
| Mohs Hardness | 3 |
| Ratio of Refraction | 1.57 |
| Appearance | White Powder |
Fine Precipitated Aluminium Hydroxide.
| Items | Unit | Index |
| Al(OH)3 | % | ≥99.4 |
| SiO2 | % | ≤0.02 |
| Fe2O3 | % | ≤0.02 |
| Na2O | % | ≤0.3 |
| Na2O (Soluble) | % | ≤0.015 |
| Moisture | % | ≤0.3 |
| Loss on ignition (600℃ ) | % | 34.5±0.5 |
| Whiteness | % | ≥96 |
| Particle size D50, Laser diffraction | μm | 1.2~1.6 |
| Particle size D50, Laser diffraction | μm | 1.6~2.1 |
| PH value | — | 8.0-10.0 |
| Oil absorption (linseed oil) | Ml/100g | ≤40 |
| Electrical conductivity | us/cm | ≤30 |
| Residue on Sieve | % | ≤0.01 |
Key advantages
Low Na2O% (Soluble Na2O% : ≤0.015%)
Low Electrical Conductivity: ≤30μs/cm
Low Residue Content(on sieve): ≤0.01% (400Mesh)
Less black Spots and Impurities: ≤25/100gram
Application
Recommended to be used in wires and cables, copper clad plates(CCL), silicone insulators, heat insulation material, etc.
Packaging:Net weight 25kg/bag, Compound paper-plastic bag
Storage and Attention: Keep in dry, room temperature and moisture proof condition, preventing the heating
