FIELD: chemistry.
SUBSTANCE: method of ultradisperse aluminium powder obtainment involves sequential addition of aluminium powder and concentrated ammonia hydroxide solution into water; suspension processing with ultrasound at 60-100°C. During suspension processing with ultrasound, modification agent is added in the form of iron or manganese salt solution in amount of 0.5-2% in terms of oxides. Obtained sediment is filtered, dried and annealed at 400-600°C at least for 60 minutes.
EFFECT: accelerated process, obtainment of product applicable in sun protection compositions.
3 dwg, 1 tbl, 1 ex
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