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.
Sorbent Technologies Inc Silica Gel Desiccant Spheres w/100% Yellow Indicator, 2-5mm, 1kg
Silica Gel Desiccant Spheres with 100% yellow indicator are non-corrosive and chemically inert. The desiccant spheres have particle distribution of 2-5mm and a quantity of 1kg. It is a highly porous form of silica, with an extremely large internal surface area and an affinity towards water and other polar compounds. It will not change its size or shape. Even when the silica gel is water saturated, it remains free-flowing. The spheres with yellow indicator (phenol phthalein) turn blue/green upon reaching moisture capacity.
Sorbent Technologies Inc Silica Gel Desiccant Spheres w/100% Blue Indicator, 2-5mm 5kg
Silica Gel Desiccant Spheres with 100% blue indicator are non-corrosive, non-toxic, and chemically inert. The desiccant spheres have particle distribution of 2-5mm and a quantity of 5kg. It is a highly porous form of silica, with an extremely large internal surface area and an affinity towards water and other polar compounds. It will not change its size or shape. Even when the silica gel is water saturated, it remains free-flowing. The spheres with blue indicator (cobalt chloride) turn pink upon reaching moisture capacity.
Apexbio Technology LLC DCC-2036 (Rebastinib) 1020172-07-9 10mg
DCC-2036 (Rebastinib CAS 1020172-07-9) is a synthetic small molecule that acts as a conformational control inhibitor of ABL1 kinase By binding simultaneously to the E282/R386 switch-control pocket and the Met318 ATP hinge region DCC-2036 promotes the inactive type II conformation of ABL1 It exhibits potent inhibition of wild-type ABL1 (IC50 0 8 nM) and retains activity against the gatekeeper mutant ABL1T315I (IC50 4 nM) DCC-2036 demonstrates non-ATP-competitive inhibition and suppresses the proliferation of Ba/F3 and K562 cells in vitro It also extends survival in mouse models engrafted with BCR-ABL1T315I leukemic cells indicating its utility in research on tyrosine kinase inhibitor resistance in leukemia
Electron Microscopy Sciences Desiccant Cartridge, Small
These desiccant cartridges can be used in desiccator cabinets or non-vacuum desiccators, analytical balance cases, and precision laboratory instruments. The clear polystyrene dish allows for instant visual inspection of the silica gel color which changes from blue to pale pink as it absorbs moisture.
A highly porous membrane covers the dish of the desiccant providing good moisture absorption. The desiccant can be regenerated by heating cartridges in an oven at 50 degree C (122 degree F) overnight or in a 150 degree C (302 degree F) oven for one hour. The silica gel is inert and non-toxic. Each cartridge is individually sealed in aluminum foil. Dispose of the cartridges after repeated use.
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
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
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
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
Silica Gel, Desiccant, MilliporeSigma™
CAS: 63231-67-4
Calcium Chloride, Anhydrous, Desiccant, 20 Mesh, Approx. 95%, Spectrum™ Chemical
CAS: 10043-52-4 Molecular Formula: CaCl2 Molecular Weight (g/mol): 110.98 InChI Key: UXVMQQNJUSDDNG-UHFFFAOYSA-L IUPAC Name: calcium dichloride SMILES: [Cl-].[Cl-].[Ca++]
Desiccant, MilliporeSigma™
CAS: 63231-67-4
Avantor Silica Gel Desiccant , 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
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