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.
Hach Company Desiccant Assembly for SD900
Desiccant assembly for SD900 Sampler includes grease packet
Hach Company Desiccant Refill 1.5 lbs
Desiccant Refill-1 5 lbs-YellowDesiccant (bulk) for SD900 sampler 1 5 lbs
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 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.
Immunochemistry Technology Desiccant Packets 10/pk
Desiccant Pack includes ten silica gel desiccant packets (5gm ea.) used to absorb moisture during immunoassay plate storage. Include a desiccant packet with stored ELISA plates to increase stability and shelf-life.
Petroleum Analyzer Corporation Kit, Drierite, Indicating, Refill, 10-20 Mesh, 1 lb.
Kit, Drierite, Indicating, Refill, 10-20 Mesh, 1 lb.
Nanocs SILICA NANOPARTICLES AMINE 1L
Silica nanoparticles, amine functional, 200 nm, 1 mL, Quote 2505301EL
Perkin Elmer US LLC Desiccant Refills for PG-H2 Plus Generator
These desiccant refills are for the PG-H2 Plus Pure Gas Hydrogen Generator and are sufficient for three refills. Pure gas hydrogen generators employ the newest membrane technology available for the safe production of pure hydrogen gas. This patented design is ideal for operation with gas analyzers, as fuel gas for flame tools, or as a source for pure hydrogen in plasma chambers and other isolated environments. Electrolytic membrane technology is preferred over alternative hydrogen generating techniques because it is clean, requires less maintenance and there is no need to store chemicals to maintain operation. The generators offer silent operation and require only deionized or distilled water with no caustic solutions which can affect the purity of the hydrogen.
Research Products International Corp Humidity Sponges, Regenerable, 40 per Case
Humidity Sponges are ideal for providing dry conditions in laboratory applications. Humidity Sponges have a high moisture absorbency of up to 37% and one bag will maintain dry conditions inside a container with a two gallon volume.
The non-toxic desiccant is enclosed within a breathable polyethylene bag. Indicating material changes color to signal when full moisture capacity has been reached.