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/418/501/product-dating-information-06-25-mk.pdf
718483
Silica
nanopowder, 99.8% trace metals basis
Synonym(s):
Silicon dioxide
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 100 g | Please contact Customer Service for Availability | ₹22,950.00 |
About This Item
assay
99.8% trace metals basis
form
nanopowder
reaction suitability
core: silicon
surface area
175-225 m2/g , BET
diameter
12 nm
bp
2230 °C (lit.)
mp
>1600 °C (lit.)
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
Application
1 of 1
This Item | |||
|---|---|---|---|
| assay 99.8% trace metals basis | assay - | assay - | assay - |
| form nanopowder | form powder | form powder | form mesoporous, nanoparticles |
| diameter 12 nm | diameter - | diameter - | diameter - |
| mp >1600 °C (lit.) | mp >1600 °C (lit.) | mp >1600 °C (lit.) | mp >1600 °C (lit.) |
| surface area 175-225 m2/g , BET | surface area - | surface area - | surface area - |
| bp 2230 °C (lit.) | bp 2230 °C (lit.) | bp 2230 °C (lit.) | bp 2230 °C (lit.) |
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flash_point_f
Not applicable
flash_point_c
Not applicable
Storage Class
13 - Non Combustible Solids
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 718483-100G | 04061832855134 |
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How can I determine the shelf life / expiration / retest date of this product?
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Can you give me information about this silica (718483), its xrd value and whether it is crystalline or amorphous?
1 answer-
This product is an amorphous powder.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
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Is it porous or nonporous? I want to know particle size distribution(dispersity)
1 answer-
The porosity and particle size are not determined for this product.
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