Blue Silica Gel

sSORB® blue silica gel is ideal as a primary desiccant or blended with other desiccants in any application where visual control of moisture is required. sSORB silica gel beads are saturated with a moisture indicating solution that gives them a deep blue color when dry. Also known as a narrow pore silica gel, sSORB has a vast network of interconnecting pores with diameters of 20-30 Å. These pores have a strong affinity for moisture and use physical adsorption and capillary condensation to trap and hold it. Silica gel will remove moisture at temperatures as high as 220° F, but is best used at room temperature (70-90° F) and high relative humidity (60-90% Rh). The color changes from blue to purple to pink as it adsorbs moisture.

Contact us today for further information: 847.292.8600.

TYPICAL APPLICATIONS

sSORB blue silica gel is frequently used with compressed air dryers, gas drying, breathers, and in packaged goods. Due to the addition of the moisture indicator, sSORB Indicating Silica Gel should not be used in contact with products intended for consumption such as food or pharmaceuticals.

AVAILABLE PRODUCTS
sSORB® INDICATING BLUE SILICA GEL PRODUCTS
Product Adsorbent Type Color Size Form
 sSORB AB25B  Silica Gel  A Blue Indicating  1 -3 mm  Bead
sSORB AB25B Silica Gel A Blue Indicating 2-5 mm Bead
sSORB AB35B Silica Gel A Blue Indicating 3-5 mm Bead
CHEMICAL FORMULA

SiO2 · nH2O + CoCl2

TYPICAL PROPERTIES
sSORB® INDICATING BLUE SILICA GEL TYPICAL PROPERTIES
Property  Value Unit
Bead Size 1 - 3  2 - 5 3 - 5 mm
Normal Pore Opening  20 - 30 20 - 30 20 - 30 Å
Color Change  Blue to Pink Blue to Pink Blue to Pink Indication
pH (Slurry)  ≈ 4 - 7 ≈ 7 ≈ 4 - 7 pH
Water Adsorption Capacity
@ 20% RH 25℃  ≥ 8 ≥ 8 ≥ 8 %wt
@ 35% RH 25℃  ≥ 13 ≥ 13 ≥ 13 %wt
@ 50% RH 25℃  ≥ 20 ≥ 20 ≥ 20 %wt
Bulk Density ≥ 750  ≥ 750 ≥ 750 g/l
≥ 46  ≥ 46 ≥ 46 lb/ft3
Size Qualification   ≥ 97 ≥ 97 ≥ 97 %
Package Moisture   ≤ 2.0 ≤ 2.0 ≤ 2.0 %wt
PACKAGING INFORMATION
PACKAGING FOR sSORB® INDICATING TYPE-A BLUE SILICA GEL
Bags 55 lb (25 kg)
Drums Filled to order
Super Sacks Filled to order
CONTACT US

INTERRA GLOBAL 
800 Busse Highway
Park Ridge, Illinois 60068

Call: 847.292.8600

STORAGE

Store sSORB type-a blue indicating silica gel in a dry location to prevent premature water adsorption. Reseal packages after opening to prevent contamination and unintended water adsorption. We recommend that you rotate stock so oldest material is used first.