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FLORISIL®
SELECTIVE ADSORBENTS
FLORISIL® is a highly selective adsorbent which has found extensive
use in preparative and analytical chromatography. This adsorbent is unique because it is
an extremely white, hard powdered magnesium-silica gel. Frequently referred to as a
magnesium silicate, FLORISIL is manufactured by U.S. Silica Company.
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TYPICAL CHEMICAL COMPOSITION:
(volatile
free basis) |
| SiO2 (SILICONE DIOXIDE) |
84.0% |
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MgO (MAGNESIUM OXIDE) |
15.5% |
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Na2 SO4 (SODIUM SULFATE) |
0.5% |
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| TYPICAL CHEMICAL GRADES: |
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A: |
Standard activation grade, activated at 650° C |
| B:
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Less active grade, activated at
260° C |
| PR:
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Pesticide residue analysis
grade, activated at 675° C (**see note below) |
| TLC: |
Thin layer chromatography |
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MESH AVAILABILITY:
8/16, 16/30, 30/60, 60/100, 60/200, 100/200, -100, -200
Other special meshes available on request.
NOTE: Using U.S. Standard sieves, typically 80% to 90% of the product
will fall between the listed meshes. |
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PRINCIPAL APPLICATIONS:
Sample preparation...General column
chromatography...Isolation of steroids, sex hormones and related compounds...Cleanup of
pesticide residues...Separation of chlorinated pesticides...Isolation of
antibiotics...Separation of lipids...Isolation of alkaloids...Separation of nitrogen
compounds from hydrocarbons...Purification of pharmaceuticals...Separation of aromatic
compounds from aliphatic-aromatic mixtures...Assay of vitamins...Liquid partition
chromatography...Decolorization of oils, fats and waxes by percolation or contact
treatment...Use as a catalytic agent...Thin layer chromatography.
**Before shipment, each lot of the 60/100 PR grade is
required to meet the performance characteristics as described in "Changes of Official
Methods", Journal of the A.O.A.C. Chapter 24.208(h), p.223, Vol. 49, Nov. 1, 1966.
For direct inquiries,
contact Marsha Hall toll free at (800) 258-2500.
International inquiries can call (304) 258-2500 or email to:
hallma@ussilica.com
For a FLORISIL MSDS sheet click here.
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