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.
Strem, An Ascensus Company CAS# 63231-67-4. 500g. Silica gel, 70-200 mesh (TLC). MFCD00011232
CAS# 63231-67-4. 500g. Silica gel, 70-200 mesh (TLC). MFCD00011232. Molecular Weight: 78.10. Molecular Formula: H2SiO3. Color/form: white pwdr. Strem# 93-1427. http://www.strem.com/catalog/v/93-1427/
Medchemexpress LLC Inlexisertib (DCC-3116) | 2543673-19-2 | 99.3% | 535.60 g/mol | C26H36F3N7O2 | 10 MG
Inlexisertib is a small-molecule, orally active inhibitor of the ULK1 and ULK2 kinases used in preclinical cancer research to inhibit autophagy and sensitize KRAS-mutant tumors to targeted therapies.
- Orally active ULK1/2 inhibitor that blocks autophagy.
- Demonstrated antiproliferative activity in KRAS-mutant cell lines and tumor growth inhibition in non-small cell lung cancer models.
- Molecular formula C26H36F3N7O2 and molecular weight 535.60 g/mol.
- High supplied purity (~99.3%).
- Available in multiple solid pack sizes and as a 10 mM solution in DMSO for in vitro studies.
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.
Sorbent Technologies Inc Activated Alumina Spheres, 7x14 Mesh, 2.0mm, 1kg
The activated alumina spheres are very porous, have a high surface area, and do not change form. They will not soften or disintegrate when immersed in liquids. When used to adsorb water, they act as an efficient desiccant. Molecules with the highest polarity are preferentially adsorbed. In the absence of irreversible fowling, they may be regenerated by heating to a temperature between 177-316C. Applications: Drying and purification of organic liquids and gases; adsorption of heavy metals such as fluorides, phosphates, arsenic acids, and humic acids; purification of processing liquids, industrial water, and waste water by removing highly polar compounds such as: TBC, alcohols, ethers, etc.; removal of acids formed from the degradation of transformer oils, lubricating oils, and refrigerants; removal of residual halides and water during the manufacture of chlorinated and/or fluorinated hydrocarbons, yielding a non-corrosive product.
Sorbent Technologies Inc Activated Alumina Spheres, 1/8in, 3.2mm, 1kg
The activated alumina spheres are very porous, have a high surface area, and do not change form. They will not soften or disintegrate when immersed in liquids. When used to adsorb water, they act as an efficient desiccant. Molecules with the highest polarity are preferentially adsorbed. In the absence of irreversible fowling, they may be regenerated by heating to a temperature between 177-316C. Applications: Drying and purification of organic liquids and gases; adsorption of heavy metals such as fluorides, phosphates, arsenic acids, and humic acids; purification of processing liquids, industrial water, and waste water by removing highly polar compounds such as: TBC, alcohols, ethers, etc.; removal of acids formed from the degradation of transformer oils, lubricating oils, and refrigerants; removal of residual halides and water during the manufacture of chlorinated and/or fluorinated hydrocarbons, yielding a non-corrosive product.
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.
Sigma Aldrich Fine Chemicals Biosciences Florisil(R) 100-200 mesh | 1343-88-0 | MFCD00078249 | 1KG
Florisil(R) 100-200 mesh | Mol Wt: 100.39 | 1343-88-0 | MFCD00078249 | 1KG
Electron Microscopy Sciences Desiccant Canister
Ideal for dry control of desiccator cabinets. Moisture is absorbed through the perforations in the aluminum case, which contains silica gel. This 2 x 4" canister maintains a safe level of humidity in 3cu.ft (0.8 cu. meter) area. When the monitor window turns pink, the silica gel is saturated. It can be regenerated in a 300 degree F (150 degree C) oven in about 3 hours. The monitor window will be blue in color when recharged.
Sigma Aldrich Fine Chemicals Biosciences Corn oil US Pha200mg
This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.for further information and support please go to the website of the issuing Pharmacopoeia.
Medchemexpress LLC Industrial liquors, corn steep liquor | 66071-94-1 | MFCD00130866 | 45.0% | 500 G
Corn steep liquor is an industrial by-product used as a nutrient supplement in liquid culture media for microorganisms and fungi. Supplied as a dried powder, it delivers proteins and minerals that support mycelial growth and secondary metabolite production, and is suitable for fermentation and cultivation workflows.
- Nutrient-rich additive for microbial and fungal cultures.
- Supports increased mycelial growth and secondary metabolite production.
- Contains 45.0% total protein (on a dry basis).
- Low moisture content (7.4% loss on drying) for stability.
- Slightly acidic when prepared (pH 4.14 at 5% in water).
- Solid, yellow to brown powder for easy handling and dosing.
Medchemexpress LLC Industrial liquors, corn steep liquor | 66071-94-1 | MFCD00130866 | Not applicable - complex mixture (no single molecular weight) | Not applicable - complex mixture (no single chemical formula) | 1 KG
Corn steep liquor is a food-industry by-product used as a nutrient-rich additive for microbial culture media. It promotes fungal mycelial growth and can increase production of secondary metabolites and other biologically active compounds.
- nutrient-rich fermentation supplement.
- promotes mycelial growth and biomass accumulation.
- enhances secondary metabolite and product yields.
- available as powder or concentrated liquid formulations.
- suitable for research use; follow supplier storage recommendations.
Electron Microscopy Sciences Dextrose, Anhydrous, Reagent 500 GR
(D-Glucose)
CAS #50-99-7 C₆H₁₂O₆ F.W. 180.16
Assay: 99.8%
Electron Microscopy Sciences Silica Gel Bulk Desiccant, 2 Lbs
Changes color when it reaches max absorption capacity.