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.
Petroleum Analyzer Corporation Kit, Drierite, Indicating, Refill, 10-20 Mesh, 1 lb.
Kit, Drierite, Indicating, Refill, 10-20 Mesh, 1 lb.
Hach Company Desiccant, Drierite (with indicator) 454g
Indicating Drierite changes from a blue color when dry to red upon absorption of moisture. Packaged in 454-g (1 lb) containers.
Medchemexpress LLC Corn steep liquor | 66071-94-1 | 100 G
Corn steep liquor is a food-industry by-product supplied as a dried powder that serves as a nutrient-rich supplement for liquid culture media. It provides amino acids, vitamins, and minerals that support fungal mycelial growth and can increase production of secondary metabolites. Manufacturer storage and handling guidance should be followed for best results.
- Used as a nutritional additive for fungal liquid culture media.
- Enhances production of secondary metabolites and mycelial growth.
- Provided as a yellow to brown powder form.
- Available in multiple pack sizes for lab and scale-up use.
- CAS number 66071-94-1 for substance identification.
- Storage: powder -20°C (3 years) or 4°C (2 years); in solvent -80°C (6 months) or -20°C (1 month).
- Shipped at room temperature in continental US; conditions may vary elsewhere.
Strem, An Ascensus Company CAS# 63231-67-4. 2kg. Silica gel, 70-200 mesh (TLC). MFCD00011232
CAS# 63231-67-4. 2kg. 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/
Sigma Aldrich Fine Chemicals Biosciences Dextrin corn commerci2.5KG
DEXTRIN Dextrin corn commerci2.5KG
Thomas Scientific Ascarite II CO2 Absorbent 4-10 Mesh 500 g
Ascarite II CO2 Absorbent 4-10 Mesh 500 g
Electron Microscopy Sciences Silica Gel Packets 10 Gram, 2¾" x 3", 91.5 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: 2¾" x 3"
Capacity: 91.5 cubic inch
U.S. Pharmacopeia Desiccant, Small, 2 pouches
Desiccant, Small (2 pouches (approximate weight 44 grams, each)).
Apexbio Technology LLC DCC-2036 (Rebastinib) 1020172-07-9 5mg
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
Apexbio Technology LLC DCC 538-75-0 500g
Dicyclohexylcarbodiimide (DCC CAS 538-75-0) is an organic carbodiimide frequently employed as a condensation reagent DCC facilitates the formation of peptide bonds by activating carboxylic acids towards nucleophilic attack resulting in the generation of esters amides or anhydrides under moderate temperatures This reactivity is primarily utilized in peptide synthesis preparation of ester or amide derivatives and construction of complex organic frameworks Based on these chemical properties DCC holds research potential in biological pharmaceutical and medicinal chemistry applications
CHEMSCIENCE Limestone for CaO, MgO, SiO2, R2O3
• This product is supplied in five lot of 500 g each of known concentration ( % concentration availiable upon request.)
• Detailed purity information, along with the Safety Data Sheet (SDS) and Technical Data Sheet (TDS), will be provided upon purchase.
Nanocs SILICA NANOPARTICLES AMINE 1L
Silica nanoparticles, amine functional, 200 nm, 1 mL, Quote 2505301EL
Perkin Elmer US LLC Reusable Dessicant Kit - Qty. 4
FT-IR spectrometers require dessicant kits to keep their optical paths moisture-free. PerkinElmer recommends that your instrument's desiccant be replaced every six months. Your spectrometer's manual has instructions on how to install the dessicant. Depending on the spectrometer, you will need two to three dessicant kits every six months.