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 DL-erythro/threo sphinganine (d16:0) | 50731-08-3 | 98.0% | 1MG
DL-erythro/threo sphinganine (d16:0) | 50731-08-3 | 98.0% | 1MG
Electron Microscopy Sciences Silica Gel Packets 2 Gram, 7/8" x 2-1/8", 12.2 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: 7/8" x 2-1/8"
Capacity: 12.2 cubic inch
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.
Medchemexpress LLC Industrial liquors, corn steep liquor | 66071-94-1 | 250 G
Corn steep liquor is a concentrated, nutrient-rich by-product of corn wet-milling supplied as a powdered fermentation supplement. It provides organic nitrogen, vitamins, minerals, and growth factors used to support microbial and fungal culture growth, mycelial development, and increased production of secondary metabolites.
- Provides organic nitrogen, vitamins, and minerals to culture media.
- Supports mycelial growth and increased secondary metabolite production.
- Supplied as a stable powdered form for easy storage and handling.
- Available in multiple package sizes to suit research and production needs.
- Batch-specific COA and SDS available for quality and safety verification.
- Storage guidelines provided for long-term stability of the powder.
Andwin Scientific HUMIDITY INDICATOR CARD
The Humidity Indicator Cards are ideal for use as spot indicator. Humidity is less than 30% if the spot is in the "blue" condition. As humidity becomes greater than 30%, the spot will transform from "blue" to "pink"
Petroleum Analyzer Corporation Kit, Drierite, Indicating, Refill, 10-20 Mesh, 1 lb.
Kit, Drierite, Indicating, Refill, 10-20 Mesh, 1 lb.
Electron Microscopy Sciences Desiccant Canister - Reusable
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.
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.