Silica gel, 2 - 4mm pellets, orange

Silica gel is a desiccant (drying agent) with the capacity to absorb 27% of its weight in water within one day at 80% relative humidity. Bulk density is about 0.7 (70g/100mL). 2 to 4mm pellet size range, which equates ASTM mesh 8 to 10. Dry pellets are orange and turn dark green when near saturation. Heat applied to an open container holding silica gel - a hotplate or an oven at 110 deg. C, will restore silica gel to its previous moisture absorbing capability. Unlimited cycles are possible.Silica gel is produced by the reaction of sulphuric acid with sodium silicate.Orange silica gel does not contain cobalt, which is the indicator in blue silica gel. Silica gel has very low toxicity and ingesting or inhaling small amounts of silica gel dust is not harmful.Silica gel does not dry completely below about 105 deg. C. The orange indicating dye may be damaged at temperatures above 125 deg. C. Higher temperatures also cause progressive collapse of the desiccant's fine...

Silica gel is a desiccant (drying agent) with the capacity to absorb 27% of its weight in water within one day at 80% relative humidity. Bulk density is about 0.7 (70g/100mL). 2 to 4mm pellet size range, which equates ASTM mesh 8 to 10. Dry pellets are orange and turn dark green when near saturation. Heat applied to an open container holding silica gel - a hotplate or an oven at 110 deg. C, will restore silica gel to its previous moisture absorbing capability. Unlimited cycles are possible.

Silica gel is produced by the reaction of sulphuric acid with sodium silicate.
Orange silica gel does not contain cobalt, which is the indicator in blue silica gel. Silica gel has very low toxicity and ingesting or inhaling small amounts of silica gel dust is not harmful.

Silica gel does not dry completely below about 105 deg. C. The orange indicating dye may be damaged at temperatures above 125 deg. C. Higher temperatures also cause progressive collapse of the desiccant's fine adsorbent structures. ProSciTech recommends the refurbishing of silica gel between 105 and 120 deg. C for at least 2 hours, depending on depth of pellets.

Silica gel FAQs - Also contains a colour chart showing colour changes of orange silica gel with increasing hydration
Our price for the 25kg drum includes freight to any Australian destination, but GST is always additional.

For molecular sieve see C830

Code Title Pack Size Availability Price Updated: 17-09-2021
C81-005 Silica gel, 2 - 4mm pellets, orange 500g 12 weeks AU $18.00
C81-020 Silica gel, 2 - 4mm pellets, orange 2kg 12 weeks AU $46.00
C81-250 Silica gel, 2 - 4mm pellets, orange 25kg Only 4 AU $440.00
Code Title Pack Size Availability Price
C81-005 Silica gel, 2 - 4mm pellets, orange 500g 12 weeks AU $18.00
C81-020 Silica gel, 2 - 4mm pellets, orange 2kg 12 weeks AU $46.00
C81-250 Silica gel, 2 - 4mm pellets, orange 25kg Only 4 AU $440.00