Sorbtech Bulk Adsorbents

For decontamination of extracts and for the purification of specific cannabinoid compounds

Chromatography has proven itself to be a powerful tool for the isolation of specific cannabinoids as well as to remove contaminants from Hemp and Cannabis extracts. Contaminants in Cannabis extracts are regulated by law. Elimination of toxic contaminants from cannabis extracts, and terpenes, while maintaining high purity and yield of valuable cannabinoids, has become one of today’s most important manufacturing challenges.

Sorbtech Product Application
Florisil, PR Grade
Decontamination of Pesticides
Normal Phase Silica Gel
(Cat. No. 52500-25)
Decontamination of Pesticides
THC Remediation
Reversed Phase Silica Gel
(Cat. No. 63546-1)
THC Remediation
Separation of Cannabinoids
Alumina, Basic, Act. I
Decolorization
Alumina, Neutral, Act. I
Alumina, Acid
Dedusted Alumina

Procedure for Selective Adsorption Using Silica Gel

  1. Dissolve the extract (crude or distillate) in a water-free alkane solvent (such as butane, pentane, hexane, heptane, isooctane, etc.).
  2. Pass the mixture through a column filled with a drying agent, such as magnesium sulfate or sodium sulfate, to prevent the silica gel from being deactivated by water.
  3. Load the mixture (up to 50% by weight) through a column filled with a good quality chromatographic silica gel.
  4. After loading, pass more alkane solvent through the column (~2-4CV). This contains the lipophilic pesticides. The cannabinoids are completely retained by the silica gel and cannot be recovered here.
  5. Pass about 2-4CV of alkane with 10-25% polar modifier (dichloromethane, ethyl acetate, chloroform) to recover the cannabinoids.
  6. Wash the column for regeneration with 100% polar modifier, then 100% methanol.
  7. Go back to the initial conditions for the next run with 100% polar modifier, then 100% alkane.

Adsorbents for Decontamination and Cannabinoid Isolation

Silica Gel

Catalog No.DescriptionPrice (USD)
52300-2.5Silica Gel, Premium Rf, 60A, 20-45um, 2.5kg Buy now $451.53
52300-5Silica Gel, Premium Rf, 60A, 20-45um, 5kg Buy now $804.55
52500-2.5Silica Gel, Premium Rf, 60A, 40-75um, 2.5kg Buy now $390.00
52500-5Silica Gel, Premium Rf, 60A, 40-75um, 5kg Buy now $688.24
52300-25Silica Gel, Premium Rf, 60A, 20-45um, 25kg Buy now $2,765.63
52500-25Silica Gel, Premium Rf, 60A, 40-75um, 25kg Buy now $2,543.48
52500-05Silica Gel, Premium Rf, 60A, 40-75um, 500g Buy now $112.50
52300-05Silica Gel, Premium Rf, 60A, 20-45um, 500g Buy now $160.91
52300-1Silica Gel, Premium Rf, 60A, 20-45um, 1kg Buy now $221.25
52500-1Silica Gel, Premium Rf, 60A, 40-75um, 1kg Buy now $172.06

High Efficiency Silica Gel

Catalog No.DescriptionPrice (USD)
72600-05Spherical Silica Gel, Premium Rf, 70A, 20-45um, 500g Inquire
72600-20Spherical Silica Gel, Premium Rf, 70A, 20-45um, 20kg Inquire
72600-1Spherical Silica Gel, Premium Rf, 70A, 20-45um, 1kg Inquire

C18 Silica Gel

Catalog No.DescriptionPrice (USD)
73646-05C18 MLE (Monofunctional Endcapped) Spherical Silica Gel, Premium Rf, 100A, 20-45um, 500g Inquire
63546-05C18 TLE (Trifunctional Low Endcapped) Spherical Silica Gel, Premium Rf, 100A, 40-75um, 500g Inquire
73646-1C18 MLE (Monofunctional Endcapped) Spherical Silica Gel, Premium Rf, 100A, 20-45um, 1kg Inquire
63546-1C18 TLE (Trifunctional Low Endcapped) Spherical Silica Gel, Premium Rf, 100A, 40-75um, 1kg Inquire
63546-2.5C18 TLE (Trifunctional Low Endcapped) Spherical Silica Gel, Premium Rf, 100A, 40-75um, 2.5kg Inquire
73646-5C18 MLE (Monofunctional Endcapped) Spherical Silica Gel, Premium Rf, 100A, 20-45um, 5kg Inquire
63546-5C18 TLE (Trifunctional Low Endcapped) Spherical Silica Gel, Premium Rf, 100A, 40-75um, 5kg Inquire
73646-20C18 MLE (Monofunctional Endcapped) Spherical Silica Gel, Premium Rf, 100A, 20-45um, 20kg Inquire
63546-20C18 TLE (Trifunctional Low Endcapped) Spherical Silica Gel, Premium Rf, 100A, 40-75um, 20kg Inquire
73646-005C18 MLE (Monofunctional Endcapped) Spherical Silica Gel, Premium Rf, 100A, 20-45um, 50g Inquire
63546-025C18 TLE (Trifunctional Low Endcapped) Spherical Silica Gel, Premium Rf, 100A, 40-75um, 250g Inquire
73646-025C18 MLE (Monofunctional Endcapped) Spherical Silica Gel, Premium Rf, 100A, 20-45um, 250g Inquire
63546-005C18 TLE (Trifunctional Low Endcapped) Spherical Silica Gel, Premium Rf, 100A, 40-75um, 50g Inquire
73646-001C18 MLE (Monofunctional Endcapped) Spherical Silica Gel, Premium Rf, 100A, 20-45um, 10g Inquire

Adsorbents for Decolorization 

Alumina

Catalog No.DescriptionPrice (USD)
15640-5Alumina, Basic, Act. I, 50-200um, 5kg Buy now $577.89
15740-5Alumina, Neutral, Act. I, 50-200um, 5kg Buy now $628.42
15740-25Alumina, Neutral, Act. I, 50-200um, 25kg Inquire
15600-25Alumina, Acid, Act. I, 50-200um, 25kg Inquire
15640-25Alumina, Basic, Act. I, 50-200um, 25kg Inquire

Silica Gel

Catalog No.DescriptionPrice (USD)
52300-2.5Silica Gel, Premium Rf, 60A, 20-45um, 2.5kg Buy now $451.53
52300-5Silica Gel, Premium Rf, 60A, 20-45um, 5kg Buy now $804.55
52500-2.5Silica Gel, Premium Rf, 60A, 40-75um, 2.5kg Buy now $390.00
52500-5Silica Gel, Premium Rf, 60A, 40-75um, 5kg Buy now $688.24
52300-25Silica Gel, Premium Rf, 60A, 20-45um, 25kg Buy now $2,765.63
52500-25Silica Gel, Premium Rf, 60A, 40-75um, 25kg Buy now $2,543.48
52500-05Silica Gel, Premium Rf, 60A, 40-75um, 500g Buy now $112.50
52300-05Silica Gel, Premium Rf, 60A, 20-45um, 500g Buy now $160.91
52300-1Silica Gel, Premium Rf, 60A, 20-45um, 1kg Buy now $221.25
52500-1Silica Gel, Premium Rf, 60A, 40-75um, 1kg Buy now $172.06

Adsorbents for Pesticide Remediation

Florisil

Catalog No.DescriptionPrice (USD)
09500-05Florisil, PR Grade, 60x100 mesh, 500g Buy now $259.88
09500-20Florisil, PR Grade, 60x100 mesh, 20kg Inquire

Silica Gel

Catalog No.DescriptionPrice (USD)
52300-2.5Silica Gel, Premium Rf, 60A, 20-45um, 2.5kg Buy now $451.53
52300-5Silica Gel, Premium Rf, 60A, 20-45um, 5kg Buy now $804.55
52500-2.5Silica Gel, Premium Rf, 60A, 40-75um, 2.5kg Buy now $390.00
52500-5Silica Gel, Premium Rf, 60A, 40-75um, 5kg Buy now $688.24
52300-25Silica Gel, Premium Rf, 60A, 20-45um, 25kg Buy now $2,765.63
52500-25Silica Gel, Premium Rf, 60A, 40-75um, 25kg Buy now $2,543.48
52500-05Silica Gel, Premium Rf, 60A, 40-75um, 500g Buy now $112.50
52300-05Silica Gel, Premium Rf, 60A, 20-45um, 500g Buy now $160.91
52300-1Silica Gel, Premium Rf, 60A, 20-45um, 1kg Buy now $221.25
52500-1Silica Gel, Premium Rf, 60A, 40-75um, 1kg Buy now $172.06

High Efficiency Silica Gel

Catalog No.DescriptionPrice (USD)
72600-05Spherical Silica Gel, Premium Rf, 70A, 20-45um, 500g Inquire
72600-20Spherical Silica Gel, Premium Rf, 70A, 20-45um, 20kg Inquire
72600-1Spherical Silica Gel, Premium Rf, 70A, 20-45um, 1kg Inquire