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
239313
Solfato di sodio
ACS reagent, ≥99.0%, anhydrous, granular
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Informazioni su questo articolo
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Grado
ACS reagent
anhydrous
Saggio
≥99.0%
Stato
granular
Impurezze
≤0.01% insolubles
≤5 ppm N compounds
Perdita
≤0.5% loss on ignition
pH
5.2-9.2 (25 °C, 5%)
Punto di fusione
884 °C (lit.)
Densità
2.68 g/mL at 25 °C (lit.)
Anioni in tracce
chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
Cationi in tracce
Ca: ≤0.01%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
heavy metals: ≤5 ppm (by ICP-OES)
Temperatura di conservazione
room temp
Stringa SMILE
[Na+].[Na+].[O-]S([O-])(=O)=O
InChI
1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
PMZURENOXWZQFD-UHFFFAOYSA-L
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Questo articolo | 798592 | 1.06645 | 1.06637 |
|---|---|---|---|
| form granular | form granular, powder | form fine powder | form solid |
| assay ≥99.0% | assay ≥99% | assay - | assay ≥99.0% (acidimetric) |
| Quality Level 200 | Quality Level 200 | Quality Level 500 | Quality Level 300 |
| grade ACS reagent, anhydrous | grade ACS reagent, anhydrous | grade - | grade ACS reagent |
| density 2.68 g/mL at 25 °C (lit.) | density 2.68 g/mL at 25 °C (lit.) | density 2.68 g/mL at 25 °C (lit.) | density 2.68 g/mL at 25 °C (lit.) |
| impurities ≤0.01% insolubles, ≤5 ppm N compounds | impurities ≤0.01% insolubles, ≤5 ppm N compounds | impurities - | impurities ≤0.01% Insoluble matter |
Applicazioni
NaSO4 può essere usato anche come disidratante in sintesi organica per rimuovere le tracce d′acqua dagli estratti organici. Viene impiegato per disidratare praticamente ogni genere di composto, compresi acidi grassi, aldeidi, chetoni e alogenuri alchilici e arilici.[2][3]
Confezionamento
Note legali
Prodotti correlati
Codice della classe di stoccaggio
13 - Non Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
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Chromatograms
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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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