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.
Medchemexpress LLC Dcc-3116 | 2543673-19-2 | 99.7% | 535.60 | 250 MG
DCC-3116 is an orally active ULK1/2 inhibitor. It inhibits autophagy in lung cancer cells by targeting KRASG12C signaling, thereby reducing the proliferation of lung cancer cells and exhibiting anti-cancer effects.
- Orally active ULK1/2 inhibitor
- Inhibits autophagy in lung cancer cells
- Targets KRASG12C signaling to reduce cell proliferation
- Demonstrates anti-cancer effects
- High purity of 99.7%
- Consistent with chemical structure by ¹H NMR and MS
- Stable for 3 years at -20°C in pure form
Sigma Aldrich Fine Chemicals Biosciences LUDOXR HS 40 colloidal sil
Contains ~250ppm of total biocides (5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-2H-isothiazol-3-one (31))
Sigma Aldrich Fine Chemicals Biosciences Drierite(TM) with indicator, 10-20 mesh | 7778-18-9 | MFCD00010912 | 454G
Drierite(TM) with indicator, 10-20 mesh | Mol Wt: 136.14 | 7778-18-9 | MFCD00010912 | 454G
Uline Silica Gel Desiccants - Gram Size 3, 5 Gallon Pail
Silica Gel Desiccants - Gram Size 3, 5 Gallon Pail
Sorbent Technologies Inc Silica Gel Desiccant Spheres w/100% Blue Indicator, 1-3mm 1kg
Silica Gel Desiccant Spheres with 100% blue indicator are non-corrosive, non-toxic, and chemically inert. The desiccant spheres have particle distribution of 1-3mm 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 blue indicator (cobalt chloride) turn pink upon reaching moisture capacity.
Electron Microscopy Sciences Silica Gel Packets 3 Gram, 1-1/16" x 2-1/16", 24.4 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 2-1/16"
Capacity: 24.4 cubic inch
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.
Nanocomposix NanoXact Silica Nanospheres - 50 nm, 10 mg/mL in water, 100 mL
As a global leader in silica nanoparticle production, nanoComposix specializes in providing high-purity and monodisperse nanomaterials -- delivering the quality you need for consistent results.50 nm spherical silica nanoparticles combine biocompatibility, unique optical properties, and versatile surface functionalization capabilities. These nanoparticles are useful in a broad range of applications from nanomedicine, targeted drug delivery, UV-scattering, catalysis, DNA/RNA extraction, particle size references, and more.nanoComposix provides high quality nanomaterials that are precisely engineered and highly characterized. All products are supplied with batch-specific CoA's including TEM, DLS, Zeta, and UV-Vis characterization data.Intended for Research Use Only. Contact us for custom formulations, ISO 13485/cGMP compliant materials, or bulk supply requirements.
Gilson Company Inc Indicating Drierite, No. 4 Granules, 5 lb
Indicating Drierite is used to rapidly absorb water vapor from air and gases. Made from cobalt chloride impregnated granules, the blue Drierite crystals change to a distinct pink color when exhausted. Indicating Drierite can be regenerated in an oven for longer life or can be replaced as needed.
Sigma Aldrich Fine Chemicals Biosciences Starch from corn practical1KG
Starch is a natural storage carbohydrate polymer produced by plants and varies in its form and function. It is considered as a macroconstituent of food and serves as an energy source. It is renewable and can be biodegraded. Glucose polymers amylose and amylopectin forms starch molecule. Starch influences the food structure and quality. It is a native high amylose corn starch.
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