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NIST2186II

Disodium hydrogen phosphate

Name: Disodium hydrogen phosphate
Brand: SIAL

NIST SRM 2186II

Synonym(s):

Sodium phosphate dibasic, sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate

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About This Item

Linear Formula:

Na₂HPO₄

CAS Number:

7558-79-4

Molecular Weight:

141.96

NACRES:

NA.24

PubChem Substance ID:

329818735

UNSPSC Code:

41116107

MDL number:

MFCD00003496

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Properties

grade

certified reference material

form

powder

packaging

pkg of 30 g

manufacturer/tradename

NIST^®

pKa (25 °C)

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

application(s)

general analytical

InChI

1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

InChI key

BNIILDVGGAEEIG-UHFFFAOYSA-L

Description

General description

NIST2186II is certified as a p^H standard for p^D(S) determination.

SRM 2186II_cert

SRM 2186II_SDS

Application

SRM 2186II solution is recommended for the calibration of p^H meters to use for the measurement of p^D in deuterium oxide.

Legal Information

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

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c