We are offering Silica Gel (SiO2) and Alumina (Al2O3) are two adsorbents commonly used by the organic chemist for column chromatography. These adsorbents are available in different grade "mesh" size, as maintained by a number on the bottle label: �silica gel 60� "silica gel 30-70" "silica gel 60-120" "silica gel 60-200" "silica gel 70-230" "silica gel 100-200" "silica gel 200-400" "silica gel 230-400" or "silica gel 400-800" is a couple examples. This number represents to the mesh of the sieve used to size the silica, particularly the variety of gaps in the mesh or sieve through which the crude silica particle mixture is passed in the manufacturing process.
Technical Parameter:
Parameters Values
Size in Mesh 30-70 60-120 60-200 70-230 100-200 230-400
Unit in microns (µm) 210-500 125-250 74-250 63-210 74-149 40-63
Ph (10% aqueous solution) 7+-0.5 7+-0.5 7+-0.5 7+-0.5 7+-0.5 7+-0.5
Assay as SiO2 Min 97% Min 97% 97.98% 97-98.3% 97-98.3% 97-99.5%
Particle size above+
In Between
Below- 5% 5% 5% 5% 5% 5%
85% 85% 85% 80% 80% 70%
10% -10% -10% -15% -15% -25%
Pore diameter-A 40-55 A 40-60 A 40-60 A 40-60 A 40-60 A 55-60 A
Surface Area [m2gm] 350-450 350-450 350-450 350-550 350-500 450-650
LOI Loss on Ignition.

We are offering Silica Gel (SiO2) and Alumina (Al2O3) are two adsorbents commonly used by the organic chemist for column chromatography. These adsorbents are available in different grade "mesh" size, as maintained by a number on the bottle label: �silica gel 60� "silica gel 30-70" "silica gel 60-120" "silica gel 60-200" "silica gel 70-230" "silica gel 100-200" "silica gel 200-400" "silica gel 230-400" or "silica gel 400-800" is a couple examples. This number represents to the mesh of the sieve used to size the silica, particularly the variety of gaps in the mesh or sieve through which the crude silica particle mixture is passed in the manufacturing process.
Technical Parameter:
Parameters Values
Size in Mesh 30-70 60-120 60-200 70-230 100-200 230-400
Unit in microns (µm) 210-500 125-250 74-250 63-210 74-149 40-63
Ph (10% aqueous solution) 7+-0.5 7+-0.5 7+-0.5 7+-0.5 7+-0.5 7+-0.5
Assay as SiO2 Min 97% Min 97% 97.98% 97-98.3% 97-98.3% 97-99.5%
Particle size above+
In Between
Below- 5% 5% 5% 5% 5% 5%
85% 85% 85% 80% 80% 70%
10% -10% -10% -15% -15% -25%
Pore diameter-A 40-55 A 40-60 A 40-60 A 40-60 A 40-60 A 55-60 A
Surface Area [m2gm] 350-450 350-450 350-450 350-550 350-500 450-650
LOI Loss on Ignition.