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.
Electron Microscopy Sciences Silica Gel Packets 5 Gram, 1-1/16" x 2-¼", 45.75 cubic inch Capacity
Silica Gel-Desiccant is a fast and extra moisture absorbing agent. Meets FDA specifications for food and drug product. Provides superior absorption. Remains dry at maximum saturation. Silica gel can absorb 15% of its weight in water vapor in two hours.
Dimensions: 1-1/16" x 2-¼"
Capacity: 45.75 cubic inch
Electron Microscopy Sciences Silica Gel Canister, 500 per pack
This small container offers more desiccant in less space. It is ship-proof and possesses greater drying capabilities. Designed for use in bottles and small containers. Perfect for protecting against potency loss, odor formation, color changes, caking, mildew and condensation. Capsule shell is made from polyethylene with very fine mesh top and bottom. The canister contains 1 gram silica gel.
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.
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.
Research Products International Corp Reusable Silica Gel Desic Bgs
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.
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.
Thermo Scientific IS5 Desiccant Replacement Kit 2 EA
A desiccant replacement kit designed for IS5™ desiccants containing desiccant packets, screens, springs, and seals tailored for replacing the desiccant in an IS5™ desiccant unit to help maintain its moisture absorbing capabilities
![eMolecules 7631-86-9 | White Silica Gel Beads, 3 mm (2-5 mm) | Oakwood Chemicals | MFCD00011232 | 60.083 | O2Si | 0.000 | O=[Si]=O | 2kg | 508866353](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000128756.jpg-250.jpg)
eMolecules 7631-86-9 | White Silica Gel Beads, 3 mm (2-5 mm) | Oakwood Chemicals | MFCD00011232 | 60.083 | O2Si | 0.000 | O=[Si]=O | 2kg | 508866353
White Silica Gel Beads, 3 mm (2-5 mm) | Oakwood Chemicals | 7631-86-9 | MFCD00011232 | 60.083 | O2Si | 0.000 | O=[Si]=O | 2kg | 508866353
Cole-Parmer Drierite 27069 RF 68 Refill kit for Gas Purifier, item number 01418-50
Purifier allows a maximum flow rate of 300 liters/hour and a maximum working pressure of 100 psi. Absorbs up to 25 g of moisture. Acrylic column has two halvesone half is filled with 250 ml of indicating Drierite desiccant, which produces a terminal dryness of 0.005 mg/liter. The other half is filled with 250 ml of 5 molecular sieves to remove trace impurities. Purifier measures 11-3/8"L x 2-5/8" dia and has an anodized aluminum cap, 303 stainless steel desiccant supports and coil springs, and an O-ring gasket. Inlet/outlet ports are 316 stainless steel; 1/8" threaded male connections.
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 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.
Waters Corp Regenerated Cellulose Membrane, Short Channel, 2 kDa MWCO, Pack of 5
This regenerated cellulose membrane is designed for use with short channels. It features a 2 kDa molecular weight cut-off and is supplied in a pack of 5, offering compatibility with various accessories.
- Regenerated cellulose membrane
- For short channel
- 2 kDa MWCO
- Pack of 5
- Compatible with accessories
Sigma Aldrich Fine Chemicals Biosciences DrieriteTM without indicat
REAGENT DrieriteTM without indicat