Skip to Content
Merck
CN

1.06580

di-Sodium hydrogen phosphate dihydrate

for analysis EMSURE®

Synonym(s):

di-Sodium hydrogen phosphate dihydrate, Sodium monohydrogen phosphate, Sodium phosphate dibasic, sec-Sodium phosphate, Disodium hydrogen phosphate dihydrate, Disodium phosphate, Sodium phosphate dibasic dihydrate

Sign In to View Organizational & Contract Pricing.

Select a Size


About This Item

Linear Formula:
Na2HPO4 · 2H2O
CAS Number:
Molecular Weight:
177.99
NACRES:
NA.21
EC Index Number:
231-448-7
UNSPSC Code:
12352302
MDL number:
Assay:
≥99.5% (acidimetric)
Grade:
Laboratory Reagent
Form:
solid
Solubility:
93 g/L
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

di-Sodium hydrogen phosphate dihydrate, for analysis EMSURE®

InChI

1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2

SMILES string

O.O.[Na+].[Na+].OP([O-])([O-])=O

InChI key

KDQPSPMLNJTZAL-UHFFFAOYSA-L

grade

Laboratory Reagent

product line

EMSURE®

assay

≥99.5% (acidimetric)

form

solid

potency

>2000 mg/kg LD50, oral (Rat)

pH

9.0-9.2 (20 °C, 50 g/L in H2O)

mp

92.5 °C (Elimination of water of crystallisation)

solubility

93 g/L

density

2.1 g/cm3 at 20 °C

bulk density

850‑1000 kg/m3

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%

cation traces

Cu: ≤0.0003%
Fe: ≤0.001%
K: ≤0.005%
N: ≤0.001%
Pb: ≤0.001%
heavy metals (as Pb): ≤0.001%

storage temp.

2-30°C

Quality Level

Looking for similar products? Visit Product Comparison Guide

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Other Notes

Replaces: 1.06580.9057; SX0713; SX0713-5

Analysis Note

Assay (acidimetric): ≥ 99.5 %
Identity: passes test
pH-value (5 %; water): 9.0 - 9.2
Chloride (Cl): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Cu (Copper): ≤ 0.0003 %
Fe (Iron): ≤ 0.001 %
K (Potassium): ≤ 0.005 %
Pb (Lead): ≤ 0.001 %

Application

di-Sodium hydrogen phosphate dihydrate can be used as a:
  • Buffering agent in size exclusion chromatography (SEC) analysis of adalimumab.
  • Phosphorus source in the synthesis of hydroxyapatite via wet chemical precipitation.

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Articles

Experience effective immobilization of protein A on wide-pore epoxy-modified silica monoliths for mAb separation, showcasing the efficiency of Chromolith® WP 300 columns in achieving faster and highly reproducible biomolecule separations.

Application Note: Peroxidase in vegetables – Visual determination after conversion of a specific substrate.

EMSURE® Grade Inorganic Solvents and Reagents offer exceptional purity and quality control, ensuring reliable, compliant results for regulated analyses.

Quantitative analysis of Hydroxymethylfurfural in honey using a Chromolith® HighResolution RP-18e column without the common Carrez clarification step.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service