The particle size of this material is not tested on a lot to lot basis. However, historical data indicates that the bulk of this material will have a particle size range of 40 - 300 um with 95% ranging from 40 - 160 um.
199974
Oxyde d'aluminium
activated, Brockmann I, standard grade, neutral
Synonyme(s) :
Alumina
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About This Item
Formule linéaire :
Al2O3
Numéro CAS:
Poids moléculaire :
101.96
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352311
eCl@ss :
38120402
ID de substance PubChem :
Nomenclature NACRES :
SB.52
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Produits recommandés
Forme
powder
Fabricant/nom de marque
CAMAG 507-C-I
Technique(s)
ion chromatography: suitable
Impuretés
<0.03% Fe2O3
<0.03% SiO2
<0.4% Na2O
Taille des particules
40-160 μm
Dimension de pores
58 Å pore size
pH
7.0±0.5 ( in H2O)
Pf
2040 °C (lit.)
Chaîne SMILES
O=[Al]O[Al]=O
InChI
1S/2Al.3O
Clé InChI
TWNQGVIAIRXVLR-UHFFFAOYSA-N
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Description générale
The mechanism of formation of protective scales of α-Al2O3 on surfaces of binary M-Al (M = Fe, Ni or Co) alloys at high temperatures has been studied.[1] Activated aluminum oxides having different acidities and water concentrations (having Brockmann activity I-V) can easily detect various types of water (namely free water, pore water, and bound water) on the aluminum oxide present in soils.[2]
Application
Aluminum oxide (Alumina, Al2O3) has been used in the preparation of one-step self-assembled double-helices of multiwalled carbon nanotubes (MWCNT) arrays (composed of Fe nanoparticles bound to SiOx micro-particles).[3]
Aluminum oxide (neutral) has been used in the preparation of alumina supported silver (Ag/Al2O3) catalyst suitable for selective catalytic reduction of nitrogen oxides (NOx) by hydrocarbons (HC-SCR).[4]
Conditionnement
Brockmann aluminum oxides are suitable for column chromatography and adsorptive filtration.
Code de la classe de stockage
13 - Non Combustible Solids
Classe de danger pour l'eau (WGK)
nwg
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
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Les clients ont également consulté
The role of Ag O Al entities in adsorption of NCO species and reduction of NO x.
Deng H, et al.
Catalysis Today, 258, 35-40 (2015)
Carbon nanotube bundles self-assembled in double helix microstructures.
Cervantes-Sodi F, et al.
Carbon, 50(10), 3688-3693 (2012)
Thermoanalytical studies of water on activated alumina, Brockmann I-V,(acid, neutral, basic) from- 60? to+ 700? C.
Hampson JW and Bleam WF.
Thermochimica Acta, 288(1), 179-189 (1996)
Prescott R and Graham MJ.
Oxidation of Metals, 38(3-4), 233-254 (1992)
Jaakko Akola et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(25), 10129-10134 (2013-06-01)
Glass formation in the CaO-Al2O3 system represents an important phenomenon because it does not contain typical network-forming cations. We have produced structural models of CaO-Al2O3 glasses using combined density functional theory-reverse Monte Carlo simulations and obtained structures that reproduce experiments
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Hi, could you please tell me the particle size of this products? We bought it before, the important information of the product we bought listed as below: 199974-1kg, Lot#BCBN5599V, Aluminum oxide (CAS: 1344-28-1), activated, neutral, Brockmann I
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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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How can I determine the shelf life / expiration / retest date of this product?
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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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