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.pdf
214477
Silica gel Inorganic Sorbent
high-purity grade (Davisil Grade 923), 100-200 mesh
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About This Item
Produits recommandés
Nom du produit
Gel de silice, high-purity grade (Davisil Grade 923), pore size 30 Å, 100-200 mesh
Qualité
high-purity grade (Davisil Grade 923)
Niveau de qualité
Forme
fine crystals
Fabricant/nom de marque
Davisil®
Technique(s)
LPLC: suitable
Superficie
430-530 m2/g
Matrice
Silica
Groupe de la matrice active
silica
Taille des particules
100-200 mesh
75-150 μm
Dimension de pores
0.40 cm3/g pore volume
30 Å
pb
2230 °C
Pf
>1600 °C
Technique de séparation
hydrophilic interaction (HILIC)
Chaîne SMILES
O=[Si]=O
InChI
1S/O2Si/c1-3-2
Clé InChI
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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Catégories apparentées
Description générale
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction[1]
Application
Note de bas de page
Grade 923 meets ASTM D1319 specifications for hydrocarbon analysis
Informations légales
Code de la classe de stockage
11 - 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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Contenu apparenté
La chromatographie liquide basse pression (LPLC) utilise une pompe de faible pression pour pousser une phase mobile dans une colonne.
Low pressure liquid chromatography (LPLC) operates at low pressures, using a pump to drive the mobile phase onto the column.
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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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