The orange indicating silica gel initially appears orange or yellow when dry and changes to a dark green color as it absorbs moisture, which may appear close to black. Once saturated, the gel can be regenerated at temperatures of approximately 120°C. It's important not to exceed this temperature as it can damage the color indicator in the gel, making it less effective.
13767
Silica gel orange
with moisture indicator free of heavy metals
Synonym(s):
Silica gel
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About This Item
CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352309
PubChem Substance ID:
Pricing and availability is not currently available.
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quality
with moisture indicator free of heavy metals
Quality Level
impurities
≤0.025% soluble in chloroform
loss
≤2% loss on drying, 150 °C, 3 h
particle size
2-5 mm
capacity
≥25 % absorption capacity (water)
bp
2230 °C
mp
>1600 °C
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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General description
Silica gel orange (Drying pearls Orange) is a commonly employed drying agent.
Application
Silica gel orange (Drying pearls Orange) may be used to provide long-term storage conditions in the following studies:
- Multiwell plates in a gel drying box during the solid-phase reverse transfection on cell microarrays.[1]
- Robust protocol for the reverse transfection of cells on small interfering (siRNA) arrays.[2]
Storage Class Code
11 - Combustible Solids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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Why does the silica gel with product number 13767-500G-R turn black after being used as a desiccant instead of remaining clear as the customer expects?
1 answer-
Helpful?
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Silica gel orange (13767): How many times can we regenerate the silica gel in the oven until it's no longer possible?
1 answer-
The number of drying cycles that orange silica gel can be subjected to has not been assessed. The moisture indicating component is an organic compound and will fade after some time, but the moisture absorbing properties should persist.
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