Grade | Water Treatment Grade (Liquid) | Cosmetics Grade (Liquid) | Water Treatment Grade (Solid) | Cosmetics Grade (Solid) |
Item | USP-34 | USP-34 | USP-34 | USP-34 |
Solubility | Soluble in water | Soluble in water | Soluble in water | Soluble in water |
Al2O3 % | >23 | 23-24 | >46 | 46-48 |
Cl % | <9.0 | 7.9-8.4 | <18.0 | 15.8-16.8 |
Basicity% | 75-83 | 75-90 | 75-83 | 75-90 |
Al:Cl | - | 1.9:1-2.1:1 | - | 1.9:1-2.1:1 |
Insoluble substance % | ≤0.1% | ≤0.01% | ≤0.1% | ≤0.01% |
SO42- ppm | ≤250 ppm | ≤500 ppm | ||
Fe ppm | ≤100 ppm | ≤75 ppm | ≤200 ppm | ≤150 ppm |
Cr6+ ppm | ≤1.0 ppm | ≤1.0 ppm | ≤2.0 ppm | ≤2.0 ppm |
As ppm | ≤1.0 ppm | ≤1.0 ppm | ≤2.0 ppm | ≤2.0 ppm |
As(Pb)ppm | ≤10.0 ppm | ≤5.0 ppm | ≤20.0 ppm | ≤5.0 ppm |
Ni ppm | ≤1.0 ppm | ≤1.0 ppm | ≤2.0 ppm | ≤2.0 ppm |
Cd ppm | ≤1.0 ppm | ≤1.0 ppm | ≤2.0 ppm | ≤2.0 ppm |
Hg ppm | ≤0.1 ppm | ≤0.1 ppm | ≤0.1 ppm | ≤0.1 ppm |
pH-value[15% (W/W) | 3.5-5.0 | 4.0-4.4 | 3.5-5.0 | 4.0-4.4 |
Permeation rate 15% | >90% | >90% | ||
Particle size(mesh) | 100%pass 100mesh 99% pass 200mesh | 100%pass 200mesh 99% pass 325mesh |