Silica Gel Beads used for Dehumidification

Silica Gel is one of the most used adsorbent in the dehumidification process. Desiccant Silica Gel will absorb the moisture present in the ambient air and will bring down the humidity level accordingly. Whatever the application is house hold or commercial silica gel desiccant is used widely to dehumidify the air. For absorption of moisture indicating type silica gel which and non-indicating type silica gel are used. Also these both types are available to different forms: Silica Gel beads and Silica Gel Crystals. Silica Gel Blue containing indicator cobalt (II) chloride which after hydration turns to pink and after regeneration retains its basic color blue. Similarly for Silica Gel Orange containing indicator methyl violet and few a times phenolphthalein after absorbing moisture turns to green. Whereas in case of Silica Gel White it retains the same color even after adsorption because it does not contain any moisture indicator. Main process is of absorbing water that is present in form of moisture in the air and do an effective job.

Differentiation is as for the indicating types once it is in dry form contains the basic color and once it is saturated will change its color which is an indication that it’s time for the replacement. For