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| Molecular weight 分子量 | 78 | Mohs hardness摩氏硬度 | 3 |
| Density g/cm3密度 | 2.4 | Ratio of refraction折光率 | 1.58 |
| Item/Model | HJX-3G | HJM-7G | HJM-8G | HJM-10G | HJM-15G | HJM-20G | HJM-25G | HJM-50G | HJ-80G | |
| Chemical constituent 化学成分 | Al(OH)3 [%] ≥ | 99.5 | 99.5 | 99.5 | 99.5 | 99.5 | 99.5 | 99.5 | 99.5 | 99.5 |
| Al2O3 [%] ≥ | 64.5 | 64.5 | 64.5 | 64.5 | 64.5 | 64.5 | 64.5 | 64.5 | 64.5 | |
| SiO2 [%] ≤ | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | |
| Fe2O3 [%] ≤ | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | |
| Na2O [%] ≤ | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | |
| Loss on ignition 灼减 ≤ | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | |
| Attached water水分 ≤ | 0.4 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |
| +325 mesh 325目筛上 ≤ | 0.01 | 0.01 | 0.01 | 0.01 | 15 | 25 | - | - | - | |
| oil absorption 吸油率 ≈ | 33 | 25 | 24 | 24 | 18 | 18 | 16 | 18 | 20 | |
| Mean particle diameter粒度（D50） µ m≈ | 3.5 | 7 | 8 | 10 | 15 | 20 | 25 | 50 | 80 | |
| Whiteness白度 [R457] ≥ | 98 | 97 | 97 | 97 | 96 | 94 | 94 | 93 | 92 | |
| PH value PH值 ≈ | 9 | |||||||||
