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 Corn oil | 8001-30-7 | 500 ML
Corn oil, extracted from the germ of corn, serves as a versatile carrier for agent molecules and a delivery vehicle for lipophilic substances in animal research. It is also commonly utilized as a feed additive. For optimal use, gavage administration is recommended, and proper storage is crucial to maintain product integrity and avoid contamination, especially for sensitive applications like IP injections.
- Extracted from the germ of corn.
- Functions as a carrier for agent molecules.
- Acts as a delivery vehicle for lipophilic substances in animal research.
- Commonly used as a feed additive.
- Recommended for gavage administration.
- Liquid form, colorless to light yellow.
- Storage: -20°C for 3 years or 4°C for 2 years (pure form).
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.
WA HAMMOND DRIERITE COMPANY DRIERITE, REFILL KIT FOR GAS PURIFIER, STOCK# 27069
Refill kit for Drierite Stock# 27068 Gas Purifier. Refill kit contains 250 cc's of Indicating Drierite 8 mesh and 250 cc's of 5A Molecular Sieve.
WA HAMMOND DRIERITE COMPANY DRIERITE, REGULAR (NON-INDICATING) 6 MESH 1 LB JAR, STOCK# 12001
Regular Drierite is anhydrous calcium sulfate. It is of neutral pH, constant in volume, chemically inert except toward water, insoluble in organic liquids and refrigerants, non-disintegrating, non-wetting, non-toxic, non-corrosive, non-channeling, generally recognized as safe (GRAS) by the FDA, not regulated by OSHA, economical to use, and can be regenerated repeatedly for reuse. Efficiency: The moisture remaining in gases dried with Drierite at 25° - 30° C is 0.005 mg./liter, (data verified by the National Bureau of Standards). Air is dried to a dew point of -100° F. Organic liquids are dried to the low ppm range. There is little change in efficiency at temperatures up to 100° C. Typical Analysis: >99.5% CaSO4
WA HAMMOND DRIERITE COMPANY DRIERITE, DUCAL 4 MESH 50 LB DRUM, STOCK# 41050
Du-Cal Drierite is a special form of Drierite developed for drying air and the common gases. It is designed for use in industrial gas drying towers and Drierite Storage Tank Vent Driers.
WA HAMMOND DRIERITE COMPANY DRIERITE, REGULAR (NON-INDICATING) 6 MESH 5 LB JAR, STOCK# 12005
Regular Drierite is anhydrous calcium sulfate. It is of neutral pH, constant in volume, chemically inert except toward water, insoluble in organic liquids and refrigerants, non-disintegrating, non-wetting, non-toxic, non-corrosive, non-channeling, generally recognized as safe (GRAS) by the FDA, not regulated by OSHA, economical to use, and can be regenerated repeatedly for reuse. Efficiency: The moisture remaining in gases dried with Drierite at 25° - 30° C is 0.005 mg./liter, (data verified by the National Bureau of Standards). Air is dried to a dew point of -100° F. Organic liquids are dried to the low ppm range. There is little change in efficiency at temperatures up to 100° C. Typical Analysis: >99.5% CaSO4
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
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.
U.S. Pharmacopeia Desiccant, Small, 2 pouches
Desiccant, Small (2 pouches (approximate weight 44 grams, each)).