| 摘要 |
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 60-100C. 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 400-600C at least for 60 minutes. ^ EFFECT: accelerated process, obtainment of product applicable in sun protection compositions. ^ 3 dwg, 1 tbl, 1 ex |
