Lab Desiccants and Drying Agents
Hygroscopic substances and drying agents for use in laboratory settings; drying agents are commonly used to keep other substances and samples dry, or to prevent moisture from forming on/in containers. Products include drying tubes, kits, etc.
Desiccants are typically chemicals or compounds that are hydroscopic (readily absorb moisture). Common desiccants include clays, silica gels, and calcium sulfate.
In the lab, desiccants are commonly used in desiccators and desiccator cabinets, with in-line air and gas drying columns, in absorption bulbs, U-tubes, glove boxes, sealed chambers, and wherever a dry environment is required. They are also used during transport, for storage, and maintaining materials and products ─ everything from clothing to electronics.
The moisture may come from a variety of sources:
- Water vapor in the air
- Moisture in packaging materials
- Moisture from permeation or leakage
Some desiccants contain an indicator or additive that produces a color change with moisture absorption. The indicator allows the user to see when the desiccant has absorbed its maximum amount of moisture and needs to be replaced or regenerated.
Some desiccants can be reused many times simply by heating them in an oven to allow moisture to evaporate. For indicating desiccants, one can also easily tell when the desiccant is again ready to use by the change back to the original color.
Desiccants may be available in a range of mesh or particle sizes. The Tyler Equivalent is a common type of mesh sizing and indicates the number of openings per linear inch of mesh. Common desiccant mesh sizes are 4, 8, and 10 to 12. Size 4 is typically used in gas phase applications; they are larger and less likely to break. Size 8 is smaller and can be more tightly packed.
Research Products International Corp Reusabl Silica Gel Desic Bags
Convenient, easy to handle packs filled with moisture absorbing silica gel beads are available in multiple sizes to fit most desiccators. Durable microfiber bag securely contains beads eliminating the risk of leakage and is unaffected by moisture. Indicator dot changes from blue when dry to pink when moist to easily identify when recharging is needed. Saturated gel can be regenerated by microwaving bag for 6 minutes or Regenerate at 150°C (blue color changes to pink_ May be regenerated repeatedly without degradation. Supplied individually sealed in moisture-proof pouch.
Hach Company Desiccant Cartridge, 6/pk
These silica gel desiccant cartridges are used with the dry storage chamber for the Portable LDO Probe.
Metrohm USA ASCARITE CO2 ABSORBER
Ascarite ™ CO2 Absorber. A granular form of Ascarite 8-20 Mesh, 500 grams.
Medchemexpress LLC Netrin receptor DCC/ 100ug | 100ug
The netrin receptor DCC guides axonal attraction in neuronal growth cones during nervous system development Interaction with UNC5 protein induces axonal repulsion Netrin receptor DCC/DCC Protein Human (HEK293 His) is the recombinant human-derived Netrin receptor DCC/DCC protein expressed by HEK293 with C-10 His labeled tag
Drierite™ Indicating Absorbents, W.A. Hammond
Efficient desiccant giving constant visual indication of the progress of absorption and exhaustion. W A Hammond Drierite™ Drying Dessicants dries organic liquids to low ppm levels and is commonly used in desiccators, desiccator cabinets, in-line air and gas dryers.
Avantor Silica Gel SilicAR, Macron Fine Chemicals™
CAS: 1343-98-2 Molecular Formula: O2Si Molecular Weight (g/mol): 60.08 MDL Number: MFCD00011232 MFCD00217788 MFCD00148266 MFCD00603035 MFCD02100519 MFCD06202255 MFCD07370733 InChI Key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N PubChem CID: 14942 ChEBI: CHEBI:26675 IUPAC Name: silanedione SMILES: O=[Si]=O
Drierite™ Drying Desiccants, W.A. Hammond
Molecular Formula: CaO4S Molecular Weight (g/mol): 136.13 MDL Number: MFCD00010912 InChI Key: OSGAYBCDTDRGGQ-UHFFFAOYSA-L PubChem CID: 24497 ChEBI: CHEBI:31346 IUPAC Name: calcium sulfate SMILES: [Ca++].[O-]S([O-])(=O)=O
Fisher Scientific Silica Gel Desiccant (Grade 03), Certified ACS, Fisher Chemical
CAS: 7631-86-9 Molecular Formula: O2Si Molecular Weight (g/mol): 60.08 MDL Number: MFCD00011232 MFCD00217788 MFCD00163736 MFCD00148266 MFCD00603035 MFCD02100519 MFCD06202255 MFCD07370733 InChI Key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N PubChem CID: 24261 ChEBI: CHEBI:30563 IUPAC Name: silanedione SMILES: O=[Si]=O
Avantor Silica Gel 60 SilicAR, Macron Fine Chemicals™
CAS: 63231-67-4 Molecular Formula: H2O3Si Molecular Weight (g/mol): 78.098 InChI Key: IJKVHSBPTUYDLN-UHFFFAOYSA-N PubChem CID: 14768 IUPAC Name: dihydroxy(oxo)silane SMILES: O[Si](=O)O
Silica gel, preparative chromatography grade, spherical, 15 micron APS, 100 angstroms, 99.99+%, Thermo Scientific™
CAS: 63231-67-4 Molecular Formula: H2O3Si Molecular Weight (g/mol): 78.098 MDL Number: MFCD00011232 InChI Key: IJKVHSBPTUYDLN-UHFFFAOYSA-N PubChem CID: 14768 IUPAC Name: dihydroxy(oxo)silane SMILES: O[Si](=O)O
Silica gel, HPLC/UHPLC grade, spherical, 1.8 micron APS, 110 angstroms, 99.99+%, Thermo Scientific™
CAS: 63231-67-4 Molecular Formula: H2O3Si Molecular Weight (g/mol): 78.098 MDL Number: MFCD00011232 InChI Key: IJKVHSBPTUYDLN-UHFFFAOYSA-N PubChem CID: 14768 IUPAC Name: dihydroxy(oxo)silane SMILES: O[Si](=O)O
Silica Gel, Desiccant, MilliporeSigma™
CAS: 63231-67-4