Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
13767
Silica gel orange
with moisture indicator free of heavy metals
Synonym(s):
Silica gel
About This Item
Recommended Products
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
Application
- 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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Customers Also Viewed
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdfHelpful?
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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-
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.
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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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