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MilliporeSigma

NIST2186II

Fosfato de sodio dibasic

NIST SRM 2186II

Sinónimos:

Fosfato de sec-sodio, Fosfato de disodio, Hidrogenofosfato de disodio, Hidrogenofosfato de sodio

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About This Item

Fórmula lineal:
Na2HPO4
Número de CAS:
Peso molecular:
141.96
Número MDL:
Código UNSPSC:
41116107
ID de la sustancia en PubChem:
NACRES:
NA.24

grado

certified reference material

Nivel de calidad

Formulario

powder

envase

pkg of 30 g

fabricante / nombre comercial

NIST®

pKa (25 °C)

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

aplicaciones

general analytical

cadena 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

Clave InChI

BNIILDVGGAEEIG-UHFFFAOYSA-L

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Descripción general

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

SRM 2186II_cert

SRM 2186II_SDS

Aplicación

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

Información legal

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

Producto relacionado

Referencia del producto
Descripción
Precios

Código de clase de almacenamiento

13 - Non Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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Certificados de análisis (COA)

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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    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

      Helpful?

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

    1 answer
    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

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