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Aluminum Pyro Dark
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Description
Aluminum Pyro Dark
Other Names: Aluminium powder (pyrotechnic grade), Aluminum metal powder, Aluminum (black pyro grade)
CAS Number: 7429-90-5
Sum Formula: Al
Molar Mass: 26.98 g/mol
Appearance: Black dust or fine powder (grain size 6–7 microns)
Aluminum Pyro Dark is a fine powdered form of aluminum metal used primarily in pyrotechnic formulations and energetic compositions. This specific grade is characterized by a high surface area, fine grain size, and enhanced reactivity, making it suitable for fast-burning mixtures and effects requiring rapid combustion.
Chemical and Physical Properties
Purity: 86%
Density: 2.70 g/cm³
Melting Point: 660.3°C
Boiling Point: 2519°C
Solubility in Water: Insoluble
Solubility in Other Solvents: Insoluble in organic solvents; reacts with acids and alkalis
Odor: Odorless
Applications
Pyrotechnics: Used in flash powders, propellants, and other energetic compositions requiring fast ignition.
Metallurgy: Applied in thermite reactions and as a reducing agent in metal extraction.
Chemical Synthesis: Source of finely divided aluminum for reactions involving metal–nonmetal exchange.
Material Science: Sometimes used in producing aluminum-based composites or sintered materials.
Safety
Signal Word: Danger
P210, P222, P231, P231+P232, P233, P240, P241, P280, P302+P335+P334, P370+P378, P402+P404, and P501
Handling and Storage
Storage Conditions: Store in a tightly sealed container in a cool, dry, well-ventilated area. Protect from moisture, sources of ignition, and oxidizing agents. Handle under inert atmosphere if possible.
Handling Precautions: Avoid dust formation and all contact with water. Use non-sparking tools. Handle with explosion-proof equipment in a controlled environment using proper PPE.