پودر آلومینیوم

Aluminum powder is a fine, silvery-gray metallic powder widely used for its lightweight, high reflectivity, and excellent thermal and electrical conductivity. It plays a crucial role in industries such as pyrotechnics, metallurgy, and coatings.

🏭⚗️ Production
Aluminum powder is typically produced by atomizing molten aluminum or by mechanically grinding aluminum flakes or chips into a fine powder. The particle size and shape can be controlled during production to suit specific applications, ranging from spherical to irregular particles.

🔬 Properties
The chemical symbol is Al, with a molar mass of approximately 26.98 g/mol for elemental aluminum. Aluminum powder appears as a lightweight, grayish metallic powder that is highly reactive, especially when finely divided, due to its large surface area. It is non-magnetic, has a melting point of 660.3 °C, and forms a thin oxide layer that protects it from rapid oxidation under normal conditions.

🧪 Applications
Aluminum powder is extensively used in pyrotechnics and explosives for its high energy release upon combustion. It serves as a pigment and brightening agent in paints and coatings due to its reflective properties. It is also a key component in metallurgical processes such as thermite reactions and in manufacturing lightweight metal composites and additives in 3D printing materials.

⚠️ Safety
Aluminum powder is highly flammable and poses explosion hazards, especially when dispersed in air as a fine dust. It can cause respiratory irritation upon inhalation, and prolonged exposure may affect lung function. Proper handling includes using explosion-proof equipment, wearing protective masks and goggles, and ensuring adequate ventilation. Storage should be in cool, dry conditions away from sources of ignition and incompatible substances.