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Chemical name: aluminum powder, chemical formula: Al(50). This powder was prepared by dispersion of a metallic wire in argon, then passivated in slow dry air stream. Al(50) reacts with water at 50°C to release hydrogen. Application in pyrotechnics and materials sciences.
Chemical name: aluminum powder, chemical formula: P-Al(50). This powder was prepared by dispersion of a metallic wire in argon; it was then coated with palmitic acid for the purpose of passivation. P-Al(50) does not react with water if not heated up to the boiling point and finds its application in pyrotechnics and materials sciences.