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Silica adsorbents for column chromatography |
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Features
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standard silica 60, pore size ~ 60 Å; pore volume ~ 0.75 ml/g; spec. surface BET ~ 500 m2/g
highly porous, amorphous silicic acid in the form of hard, opalescent particles, prepared by precipitation of water glass with sulphuric acid
For higher demands on the performance of column packings we recommend our high-purity irregular POLYGOPREP silicas.
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silica FIA for the fluorescence indicator adsorption procedure for the determination of hydrocarbon groups in the testing of liquid fuels in accordance with DIN 51791 and ASTM D 1319-58T
The FIA method determines saturated hydrocarbons, olefins and aromatic hydrocarbons of a sample chromatographically by adsorption and desorption in a column filled with FIA silica, in the presence of a fluorescent dye mixture.
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Ordering information
Designation
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Particle size
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Pack of 1 kg
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Pack of 5 kg
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Pack of 25 kg
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Standard silica 60
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Silica 60, 0.015 - 0.04 mm
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-
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815650.1
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815650.5 |
815650.25 |
| Silica 60, 0.025 - 0.04 mm |
-
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815300.1 |
815300.5 |
815300.25 |
| Silica 60, 0.04 - 0.063 mm |
230 - 400 mesh
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815380.1 |
815380.5 |
815380.25 |
| Silica 60 M, 0.04 - 0.063 mm |
230 - 400 mesh |
815381.1 |
815381.5 |
815381.25 |
| Silica 60, 0.05 - 0.1 mm |
130 - 270 mesh |
815390.1 |
815390.5 |
815390.25 |
| Silica 60, 0.05 - 0.2 mm |
70 - 270 mesh |
815320.1 |
815320.5 |
815320.25 |
| Silica 60, 0.063 - 0.02 mm |
70 - 230 mesh |
815330.1 |
815330.5 |
815330.25 |
| Silica 60, < 0.063 mm |
+ 230 mesh
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815400.1 |
815400.5 |
815400.25 |
| Silica 60, < 0.08 mm |
+ 190 mesh
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815310.1 |
815310.5 |
815310.25 |
| Silica 60, 0.1 - 0.2 mm |
70 - 130 mesh |
815340.1 |
815340.5 |
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| Silica 60, 0.2 - 0.5 mm |
35 - 70 mesh |
815350.1 |
815350.5 |
815350.25 |
| Silica 60, 0.5 - 1.0 mm |
18 - 35 mesh |
815360.1 |
815360.5 |
815360.25 |
Silica FIA
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Silica FIA fine
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0.071 - 0.16 mm
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815410.1 |
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Silica FIA coarse
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0.071 - 0.63 mm |
815430.1 |
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