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
643653
Aluminosilicate, mesostructured
MCM-41 (hexagonal)
Synonym(s):
MCM-41 molecular sieves
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
5 g | Available to ship TODAY | $296.00 $222.00 |
25 g | Available to ship TODAY | $1,030.00 $772.50 |
About This Item
$222.00
List Price$296.00Save 25%Available to ship TODAYDetails
Quality Segment
form
powder
composition
aluminum, ~3%
surface area
900-1100 m2/g , BET
unit cell size
4.5-4.8 nm
pore size
0.8-1.1 cm3/g pore volume, 2-4 nm pore size
application(s)
battery manufacturing
SMILES string
O=[Si]=O.O=[Al]O[Al]=O
InChI
1S/2Al.O2Si.3O/c;;1-3-2;;;
InChI key
HNPSIPDUKPIQMN-UHFFFAOYSA-N
General description
Application
Preparation Note
1 of 1
This Item | |||
|---|---|---|---|
| description MCM-41 (hexagonal) | description NIST®SRM® | description United States Pharmacopeia (USP) Reference Standard | description NIST®SRM® |
| form powder | form solid | form - | form solid |
| surface area 900-1100 m2/g , BET | surface area - | surface area - | surface area - |
| application(s) battery manufacturing | application(s) - | application(s) pharmaceutical (small molecules) | application(s) - |
| unit cell size 4.5-4.8 nm | unit cell size - | unit cell size - | unit cell size - |
| Quality Level 100 | Quality Level - | Quality Level - | Quality Level - |
| composition aluminum, ~3% | composition - | composition - | composition - |
Storage Class
11 - Combustible Solids
WGK
nwg
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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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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