Particle size | 0,04-0,063 mm 400-230 mesh |
Silica gels are the most important sorbents in the purification and separation processes used in column chromatography. Our extensive range of silica gels with various different pore and particle sizes means that we always have the right material for any separation procedure. In addition to standard 60 Å silica gel, our range includes silica gels with pore sizes between 150 Å and 4500 Å, as well 22 Å and 35 Å for separating particularly small molecules. A selection of modified silica gel 60 grades completes the range.
Advantages:
Appearance | white powder |
Pore diameter | ~250 Å |
Loss on drying (160 °C) | ≤6 % |
Pore volume (N2) | 1,60-1,95 ml/g |
Specific surface | 280-355 m2/g |
pH-value | 6,0-8,0 |
Volatile parts (950 °C) | ≤13,0 % |
SiO2 content (dry substance) | ≥99,3 % |
Fe2O3 content (dry substance) | ≤0,014 % |
Na2O content (dry substance) | ≤0,15 % |
SO4 content | ≤0,10 % |
Particle size distribution | |
d12 | 23,4-41,1 µm |
d50 | 48,2-65,3 µm |
d90 | 75,5-96,0 µm |