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Bonded silica

 

(Chromatograms are available upon request)

 

Our silicas are derivatised in one of the worlds largest unit. The result is a high quality product of a unique cost-value ratio.

 

Typical properties:

 

ZEOprep 60 C18 90 C18 90 C8 90 CN 90 NH2 300 C4
surface load (µmol/g) 2.3 2.6 2.8 2.3 2.0 3.7
carbon content (%) 19.5 18.5 11 7 5.6 2.3
Tapped buld density (g/l) 740 620 560 570 560 580

Metal impurities

Na/Ca/Fe/Pb (ppm)

50 /  50 / 5 / <1

 

Other surface modified silicas are available upon request and min. purchase quantity.

 

Pore size (nm)
Modification
Particle Size (µm)
6
C18
15-25 / 40-63
6
NH2
15-25 / 40-63
9
C18
15-25 / 40-63
9
C8
40-63
9
CN
15-25 / 40-63
9
NH2
40-63
30
C4
15-25 / 40-63

Zeochem AG Seestrasse 108 CH-8707 Uetikon phone +41 44 922 93 93 fax +41 44 920 20 93 info [info] zeochem [dot] ch - Member of cph