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Silica Gel for Chromography Uses - Alfa Aesar

Silica occurs naturally but, as such, is not sufficiently hydrated for chromatographic use, thus the silica gel used in chromatography is prepared synthetically. Silica gel (SiO2) and alumina (Al2O3) are two adsorbents commonly used by the organic chemist for column chromatography. It is often used as a first purification step after an organic synthesis step. Removing precursors and by-product leaves a cleaner product.1

Features

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  • Spherical, all-porous particles, offer-able low back pressure and good separation performance
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  • The purity range of SiO2 is 99.9 to 99.99% (high purity grade: EP)
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  • Available wide variety of particle size (2  200m)
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  • Accuracy classification grade (DF) for analytical use
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  • Pore size distribution strictly controlled (60  260Å)
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  • Amorphous type silica, harmless for health
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Applications

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  • Chromatography applications, separation and purification
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  • Release agent for cosmetics, fragrances and antiseptics
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  • Catalyst carriers or resin fillers
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  • HPLC packings
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    Please find below Alfa Aesar offer of silica gels for use in preparative chromatography for HPLC.

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W.C. Still, M. Kahn and A. Mitra, Rapid chromatographic technique for preparative separations with moderate resolution. J. Org. Chem. 1978, 43,2923.

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  • Silica gel 60, 0.019-0.037mm (400-600 mesh)
  • Silica gel 60, 0.032-0.063mm (230-450 mesh)
  • Silica gel 60, 0.036-0.071mm (215-400 mesh)
  • Silica gel 60, 0.040-0.063mm (230-400 mesh), 99.5% (metals basis)
  • Silica gel 60, 0.060-0.2mm (70-230 mesh)
  • Silica gel 60, 0.062-0.105mm (150-230 mesh)
  • Silica gel 60, 0.075-0.2mm (70-200 mesh)
  • Silica gel 60, with fluorescent indicator, 0.060-0.2mm (70-230 mesh)
  • Silica gel desiccant, -3+8 Mesh Granules
  • Silica gel desiccant, -6+12 mesh granules
  • Silica gel desiccant, indicating, -6+16 mesh granules
  • Silica gel desiccant, indicating, ACS
  • Silica gel desiccant, indicating, ACS
  • Silica gel, HPLC grade, spherical, 2.2 micron APS, 120 angstroms, 99.99+%
  • Silica gel, HPLC grade, spherical, 2.2 micron APS, 80 angstroms, 99.99+%
  • Silica gel, HPLC grade, spherical, 3 micron APS, 120 angstroms, 99.99+%
  • Silica gel, HPLC grade, spherical, 3 micron APS, 260 angstroms, 99.99+%
  • Silica gel, HPLC grade, spherical, 3 micron APS, 70 angstroms, 99.99+%
  • Silica gel, HPLC grade, spherical, 5 micron APS, 120 angstroms, 99.99+%
  • Silica gel, HPLC grade, spherical, 5 micron APS, 260 angstroms, 99.99+%
  • Silica gel, HPLC grade, spherical, 5 micron APS, 70 angstroms, 99.99+%
  • Silica gel, HPLC/UHPLC grade, spherical, 1.6 micron APS, 110 angstroms, 99.99+%
  • Silica gel, HPLC/UHPLC grade, spherical, 1.8 micron APS, 110 angstroms, 99.99+%
  • Silica gel, large pore
  • Silica gel, large pore, 99.5%
  • Silica gel, large pore, 99.5%
  • Silica gel, preparative chromatography grade, spherical, 10 micron APS, 120 angstroms, 99.99+%
  • Silica gel, preparative chromatography grade, spherical, 10 micron APS, 60 angstroms, 99.99+%
  • Silica gel, preparative chromatography grade, spherical, 15 micron APS, 100 angstroms, 99.99+%
  • Silica gel, preparative chromatography grade, spherical, 15 micron APS, 60 angstroms, 99.99+%
  • Silica gel, preparative chromatography grade, spherical, 20 micron APS, 100 angstroms, 99.99+%
  • Silica gel, preparative chromatography grade, spherical, 20 micron APS, 150 angstroms, 99.99+%
  • Silica gel, preparative chromatography grade, spherical, 20 micron APS, 80 angstroms, 99.99+%
  • Silica gel, preparative chromatography grade, spherical, 50 micron APS, 60 angstroms, 99.9+%
  • Silica gel, preparative chromatography grade, spherical, 7.5 micron APS, 120 angstroms, 99.99+%
  • Silica gel, preparative chromatography grade, spherical, 7.5 micron APS, 80 angstroms, 99.99+%
  • Silica gel, spherical, 100 angstroms
  • Silica gel, spherical, 100 angstroms
  • Silica gel, spherical, 100 angstroms
  • Silica gel, spherical, 100 angstroms
  • Silica gel, spherical, 100 angstroms
  • Silica gel, spherical, 300 angstroms
  • Silica gel, spherical, 300 angstroms
  • Silica gel, spherical, 300 angstroms
  • Silica gel, spherical, 60 angstroms
  • Silica gel, spherical, 60 angstroms
  • Silica gel, spherical, 60 angstroms
  • Silica gel, TLC high purity grade, with gypsum binder
  • Silica gel, TLC high purity grade, with gypsum binder and fluorescent indicator
  • Silica gel, TLC high purity grade, without binder

Chemicals

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Metals & Materials

Catalysts

Analytical & Labware