Overview
Pseudo-boehmite is a synthetic aluminum oxide hydroxide characterized by its high surface area and thermal stability. Unlike true boehmite, it has a less ordered crystalline structure, making it highly porous and suitable for applications requiring large surface areas. It is commonly produced through controlled precipitation or hydrothermal methods. Pseudo-boehmite is widely used in industries such as petroleum refining, environmental remediation, and ceramics due to its unique properties. Its versatility and cost-effectiveness make it a preferred material for catalyst supports and adsorbents.
Physical and Chemical Properties
Pseudo-boehmite appears as a white powder or gel, with a density of approximately 3.0 g/cm³. It is insoluble in water but dissolves in acids and alkalis, forming aluminum salts. Its high surface area, often exceeding 300 m²/g, is a key feature for adsorption and catalytic applications. The material exhibits excellent thermal stability, maintaining its structure up to temperatures of around 500°C. This property is critical for its use in high-temperature processes such as catalytic cracking in petroleum refining.
Main Applications
Pseudo-boehmite is primarily used as a catalyst carrier in the petroleum and chemical industries. Its high surface area and porosity make it ideal for supporting active catalytic components, enhancing reaction efficiency. It is also employed in adsorbents for water treatment and gas purification. In the ceramics industry, pseudo-boehmite serves as a binder and filler, improving the mechanical strength and thermal resistance of products. Additionally, it finds use in coatings and as a precursor for producing alumina-based materials.
Safety and Storage
Pseudo-boehmite is generally considered low-toxicity, but precautions should be taken to avoid inhalation or prolonged skin contact. Dust exposure can cause respiratory irritation, so proper ventilation and personal protective equipment (PPE) such as masks and gloves are recommended. Storage conditions should be dry and cool, away from moisture and acidic substances. Proper sealing of containers is essential to prevent degradation and maintain the material's properties over time.
B2B Procurement Guide
When procuring pseudo-boehmite, buyers should prioritize specifications such as purity, particle size, and surface area, as these directly impact performance in end-use applications. Reputable suppliers should provide detailed technical data sheets and certificates of analysis. Price varies based on purity and quantity, with bulk purchases typically offering cost advantages. Buyers are advised to compare offerings from multiple suppliers and consider long-term contracts for consistent quality and supply.
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