sSORB™ TYPE-A INDICATING YELLOW SILICA GEL BEADED

Yellow Silica Gel

yellow silica gelOur sSORB™ Type-A Indicating Yellow Silica Gel is the naturally occurring mineral silicon dioxide that has been purified and processed into a hard, smooth beaded form. The beads are then saturated with a moisture indicating solution that gives them a yellow/orange color when dry. The beads become a dark green color as they adsorb moisture. It is a narrow pore type silica gel that 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. 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).

Our sSORB™ Type-A Yellow Indicating Silica Gel meets the needs of environmentally concerned companies and conforms to European Union requirements for moisture indicating desiccants.

TYPICAL APPLICATIONS

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

Due to the addition of the moisture indicator, sSORB™AY25B Yellow Indicating Silica Gel should not be used in contact with products intended for consumption such as food or pharmaceuticals.

AVAILABLE PRODUCTS
sSORB™ TYPE-A YELLOW INDICATING SILICA GEL PRODUCTS
Product Adsorbent Type Color Size Form
sSORB™ AY25B Silica Gel A Yellow Indicating 2-5 mm Beaded
CHEMICAL FORMULA

SiO2 · nH2O + C20H14O4

TYPICAL PROPERTIES
sSORB™ AY25B - TYPE-A YELLOW INDICATING SILICA GEL TYPICAL PROPERTIES
Property Value Unit
Bead Size 2 - 5 mm
Normal Pore Opening 20 - 30 Angstroms
Color Change Yellow to Green Indication
pH(Slurry) ≈ 7 pH
Water Adsorption Capacity
(7hr test as specified in Mil-D-3464E)
@ 20% RH 25℃ ≥ 8 % Weight
@ 35% RH 25℃ ≥ 13 % Weight
@ 50% RH 25℃ ≥ 20 % Weight
Bulk Density ≥ 700 g/l
≥ 44 lb/ft3
Size Qualification ≥ 97 %
Package Moisture ≤ 2.0 % Weight
YELLOW SILICA GEL PRODUCT DATA
PACKAGING INFORMATION
sSORB™ AY25B - TYPE-A YELLOW INDICATING SILICA GEL PACKAGING 
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 Yellow 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. The color changes from yellow (orange) to green as it adsorbs moisture. The color typically begins to changes as the moisture content passes 6% by weight and is complete at 14% by weight. A bright green color indicates moisture saturation and that it is time to replace or regenerate the desiccant.