Drierite^® is an all-purpose drying agent for the efficient and rapid drying of air, industrial gases, refrigerants, organic liquids and solids. It is used to maintain a dry atmosphere in storage spaces, vaults, commercial packages, and other enclosures; and for the protection of hygroscopic materials or materials subject to mildew, corrosion, rust, or other deterioration caused by high humidity.

Regular Drierite^®

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.

Indicating Drierite^®

Indicating Drierite^® is impregnated with cobalt chloride and is blue when dry and changes to pink upon absorption of moisture. The color change is pronounced and clearly visible. This makes Indicating Drierite^® valuable when it is necessary to know with certainty that dryness is being maintained and to signal when the drying agent should be replaced. It has the same efficiency as regular Drierite^®, and somewhat greater capacity due to the desiccating effect of the cobalt chloride.

Drierite^® Active  Drierite^® Exhausted

Regeneration
All forms of Drierite^® can be regenerated many times for reuse. The granules may be spread in layers one granule deep and heated for 1 hour at 210° C or 425° F. The regenerated material should be placed in the original glass or metal container and sealed while hot. The color of the Indicating Drierite^® may become less distinct on successive regenerations due to the migration of the indicator into the interior of the granule and sublimation of the indicator