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Dynamic Adsorbents: activated alumina, silica gel, chromatography, drysphere, dynaflash

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DAI Products

Silica Gel

Independent lab results show DAI's silica to be the highest quality in the industry with the lowest amount of trace metals.  Read More

Dynamic Adsorbents, Inc. silica gels (product details) are carefully manufactured and quality assured to provide the ideal laboratory and pilot process chromatographic material. We control the manufacturing process from raw material to finished product. We carefully control the physical characteristics of pore size, surface area, particle size and surface chemistry to ensure reproducible optimized chromatographic behavior for uniform capacity, reproducible selectivity, improved resolution and excellent performance.

k' - uniform capacity
- reproducible selectivity
RS- improved resolution
N - excellent performance

Reproducible performance is delivered regardless of the technique used, especially when transferring from one technique to another. Silica gel is an ideal media for column chromatography for several different reasons. Silica gel has a very strong affinity for water, which gives it an adsorption capacity of over 40% of its own weight at 100% relative humidity. It is compatible with most materials except strong alkalis and hydrofluoric acid. Adsorbent particle size affects how the solvent flows through the column. Smaller particles (higher mesh values) are used for flash chromatography, larger particles (lower mesh values) are used for gravity chromatography.

Benefits of Silica

Many silica gel manufacturers provide 40 micron size silica gels. With more than 90% of silica gel particles in the defined range (32-63 microns), the DAI Flash grade silica provides 18-24% more consistency than any competitive vendor. It is manufactured to satisfy the rigorous specifications of our demanding customers, separation scientists.

Separation chemists need to remember that not all 40-63 micron silica gels are the same. Try using this DAI superior high purity, clean particle size product for your separations. The rewarding results will demonstrate the benefits, reproducible lot to lot consistency in product yield.

  • High sample loading
  • Fewer unwanted reactions during separation
  • Wide range of chromatographic forms of silica – wide range of surface areas and average pore diameters
  • The hydroxyl group in silica is attached to silicon – hydroxyl groups are either free or hydrogen bonded
  • The silica gels used are amorphous

For What Applications Can Silica Be Used?

  • “Flash” Chromatography
  • Column Chromatography
  • DCC - Dry Column Chromatography
  • Large Column Chromatography
  • TLC, HPTLC, HPLC Prep LC.
  • Pilot - Prep - Process
  • Analytical QC Methods Development

Advantages of DAI Silica Over Competitors

  • Highest Quality in the Industry: An independent lab analysis of silica from all major vendors reveals that the level of unwanted iron, lead and copper contaminants is much less than that of our competitors – in some cases strikingly so! There is no finer brand of silica gel commercially available.
  • Greater Consistency: Many silica gel manufacturers provide 40 micron size silica gels. With more than 90% of silica gel particles in the defined range (32-63 microns), the DAI Flash grade silica provides 18-24% more consistency than any competitive vendor.
  • Particle distribution is kept extremely tight for reproducible results.
  • Carefully manufactured and quality assured to provide the ideal laboratory and pilot process chromatographic material
  • Careful control of the physical characteristics of pore size, surface area, particle size and surface chemistry ensuring reproducible optimized chromatographic behavior for uniform capacity, reproducible selectivity, improved resolution and excellent performance.
  • Full control of the manufacturing process from raw material to finished product.
  • All silicas can come with MSDS sheets, as well as Certificates of Analysis if requested.

Independent lab results show DAI's silica to be the highest quality in the industry with the
lowest amount of trace metals.  Read More

Shop Silica Online

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Dynamic Adsorbents, Inc. PO Box 80402 Atlanta, GA 30366-0402  770-817-0123  Toll-Free:  1-866-314-SORB (7672) FAX:  770-455-4380 info@dynamicadsorbents.com