sSORB® Type-A Indicating Silica Gel

Blue Silica Gel

blue silica gelOur sSORB® type-A indicating blue silica gel, made of the naturally occurring mineral silicon dioxide, has been purified and processed into hard, smooth beads. These beads are then saturated with a moisture indicating solution that gives them a deep blue color when dry. The color changes from blue to purple to pink as it adsorbs moisture and becomes saturated.

Our narrow pore silica gel has a vast network of interconnecting pores with diameters of 20-30Å. These pores have a strong affinity for moisture and use physical adsorption and capillary condensation to trap and hold it. Type-A 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). 

Contact us today for further information: 847.292.8600.

TYPICAL APPLICATIONS

This type of blue silica gel can be used as a primary desiccant or blended with other desiccants in any application where visual control of moisture is required, such as compressed air dryers, gas drying, breathers, the protection of non consumable packaged goods, drying and storage of flowers and seeds, etc.

Due to the addition of the moisture indicator, sSORB®  type-A indicating blue silica gel should not be used in contact with products intended for consumption, such as food products or pharmaceuticals.

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

SiO2 · nH2O + CoCl2

TYPICAL PROPERTIES
sSORB® INDICATING BLUE SILICA GEL TYPICAL PROPERTIES
Property Value Unit
Bead Size 2 - 5 3 - 5 mm
Normal Pore Opening 20 - 30 20 - 30 Angstroms
Color Change Blue to Pink Blue to Pink Indication
pH(Slurry) ≈ 7 ≈ 7 pH
Water Adsorption Capacity
(7hr test as specified in Mil-D-3464E)
@ 20% RH 25℃ ≥ 8 ≥ 11 % Weight
@ 40% RH 25℃ ≥ 14 ≥ 22 % Weight
@ 80% RH 25℃ ≥ 30 ≥ 33 % Weight
Bulk Density ≥ 700 ≥ 780 g/l
≥ 44 ≥ 48 lb/ft3
Size Qualification ≥ 97 ≥ 97 %
Package Moisture ≤ 2.0 ≤ 2.0 % Weight
PACKAGING INFORMATION
PACKAGING FOR sSORB® INDICATING TYPE-A BLUE SILICA GEL
Bags 25 kg
Drums Fill weights to order specification
Super Sacks Fill weights to order specification
CONTACT US

INTERRA GLOBAL CORP
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.