sSORB™
TYPE-A YELLOW INDICATING SILICA GEL BEADED
Our sSORB™ Type-A Yellow Indicating 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. It is also know as narrow pore silica gel and 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.
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TYPICAL APPLICATIONS
- 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, 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.
CHEMICAL FORMULA
SiO2 · nH2O + C20H14O4
| PRODUCT INFORMATION FOR TYPE-A YELLOW INDICATING SILICA GEL | |||||
|---|---|---|---|---|---|
| Product | Adsorbent | Type | Color | Size | Form |
| sSORB™ AY25B | Silica Gel | A | Yellow Indicating | 2-5 mm | Beaded |
| SPECIFICATIONS FOR sSORB™AY25B - TYPE-A YELLOW INDICATING SILICA GEL | |||
|---|---|---|---|
| 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 25ºC | ≥ 11 | % Weight |
| @ 40% RH 25ºC | ≥ 22 | % Weight | |
| @ 80% RH 25ºC | ≥ 33 | % Weight | |
| Bulk Density | ≥ 700 | g/l | |
| ≥ 44 | lb/ft3 | ||
| Size Qualification | ≥ 97 | % | |
| Package Moisture | ≤ 1.5 | % Weight | |
| PACKAGING FOR sSORB™ AY25B - TYPE-A YELLOW INDICATING SILICA GEL | |
|---|---|
| Bags | 25 kg |
| Drums | Fill weights to order specification |
| Super Sacks | Fill weights to order specification |
HANDLING & STORAGE RECOMMENDATIONS
Store sSORB® 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.
HEALTH & SAFETY INFORMATION
Health and Safety Information is available on our product MSDS.
sSORB™ Silica Gel MSDS sSORB™ AY25B Type-A Yellow Silica Gel Specification Sheet
