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Irregular Chromatography silica

 

ZEOprepĀ®- products are produced in large batches and then further processed. The result is a high quality product of good reproducability, batch by batch. Our special milling technology and process guarantee particles with rounded edges, thus lower abrsaion in the application is reached. This milling process is as well a real advantage for less fine particles over conventional milling technologies.

 

Narrow product specification and the full range of products make ZEOprepĀ® being one of the best silicas for preparative chromatography.

 

Spread chart of typical product data:

 

ZEOprep® type 40 60 90 110 300
Pore diameter (nm) 4 6 9 11 30
spec. Surface (m2/g) 600 500 400 360 90
Porevolume (ml/g) 0.6 0.8 0.9 1.0 0.7
Tapped bulk density (g/l) 570 485 415 400 470
Average water content (%) 2-4
pH 7
Metal ion content Na/Ca/Fe/Pb (ppm) 400/400/30/<1

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