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
S9763
Phosphate de sodium dibasic
ACS reagent, ≥99.0%
Synonyme(s) :
Phosphate de sodium secondaire, Hydrogénophosphate de disodium, Hydrogénophosphate de sodium, Phosphate disodique
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47.30 CHF
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About This Item
47.30 CHF
Produits recommandés
Qualité
ACS reagent
Niveau de qualité
Agence
suitable for SM 5210
Essai
≥99.0%
Forme
powder
Impuretés
≤0.002% Chloride (Cl)
≤0.01% Insoluble matter
Perte
≤0.2% loss on drying, 105°C
pH
8.7-9.3 (25 °C, 5% in solution)
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
Solubilité
water: 5% at 25 °C, clear
Traces d'anions
sulfate (SO42-): ≤0.005%
Traces de cations
Fe: ≤0.002%
heavy metals: ≤0.001% (by ICP-OES)
Chaîne SMILES
[Na+].[Na+].[H]OP([O-])([O-])=O
InChI
1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
Clé InChI
BNIILDVGGAEEIG-UHFFFAOYSA-L
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Catégories apparentées
Description générale
Application
Autres remarques
Informations légales
Code de la classe de stockage
13 - Non Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 1
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
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Contenu apparenté
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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