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Shandong Haiyuanda International Trading Co., Ltd. is a large-scale enterprise group focusing on the manufacture and export of all kinds of alumina, aluminum hydroxide, aluminum ingot, etc.And we have enjoyed good reputation from our customers for our high quality, reasonable price and prompt delivery after more than ten years development.
High purity ultra-fine alumina is a kind of white odorless powder, it is widely used in precision polishing materials, filler, catalyst support, desiccant, adsorbent, depurant, high pressure sodium lamps, etc.
Physical properties:
Item | Crystal | AL2O3 (%)≥ | D50(μm) | Specific surface areas(m2/g) | Loose density g/cm3 | Impurity elements contents(PPM)≤ | ||||||||
K | Na | Ca | Mg | Fe | Si | Co | Ni | Cu | ||||||
α-AL2O3 | α | 99.98 | 0.6~0.8 | 4~10 | 0.3~0.33 | 50 | 20 | 20 | 10 | 10 | 20 | 10 | 10 | 5 |
γ-AL2O3 | r | 99.98 | 1~10 | ≥80 | 0.12~0.16 | 50 | 20 | 20 | 10 | 10 | 20 | 10 | 10 | 5 |
The following photos show our products and packing, for your reference.if you are interested in our products, feel free to contact us.
High-purity ultra-fine alumina powder