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Documenti fondamentali

NIST2186II

Fosfato di sodio

NIST SRM 2186II

Sinonimo/i:

sec-fosfato di sodio, Idrogenofosfato di sodio, Sodio fosfato bibasico

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About This Item

Formula condensata:
Na2HPO4
Numero CAS:
Peso molecolare:
141.96
Numero MDL:
Codice UNSPSC:
41116107
ID PubChem:
NACRES:
NA.24

Grado

certified reference material

Livello qualitativo

Stato

powder

Confezionamento

pkg of 30 g

Produttore/marchio commerciale

NIST®

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

applicazioni

general analytical

Stringa SMILE

[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
BNIILDVGGAEEIG-UHFFFAOYSA-L

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Descrizione generale

NIST2186II is certified as a pH standard for pD(S) determination.

SRM 2186II_cert

SRM 2186II_SDS

Applicazioni

SRM 2186II solution is recommended for the calibration of pH meters to use for the measurement of pD in deuterium oxide.

Note legali

NIST is a registered trademark of National Institute of Standards and Technology

Prodotti correlati

N° Catalogo
Descrizione
Determinazione del prezzo

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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Certificati d'analisi (COA)

Lot/Batch Number

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Domande

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta
    1. 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

      Utile?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta
    1. 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

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Recensioni

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