Skip to Content
Merck

1.06575

di-Sodium hydrogen phosphate heptahydrate

for analysis EMSURE® ACS

Synonym(s):

Sodium phosphate dibasic heptahydrate, Disodium hydrogen phosphate heptahydrate, Disodium phosphate

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
Na2HPO4 · 7H2O
CAS Number:
Molecular Weight:
268.07
NACRES:
NA.21
EC Index Number:
231-448-7
UNSPSC Code:
12352302
MDL number:
Assay:
98.0-102.0% (acidimetric)
Grade:
ACS reagent
Form:
solid
Solubility:
154 g/L
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


grade

ACS reagent

Quality Level

vapor density

4.9 (vs air)

product line

EMSURE®

assay

98.0-102.0% (acidimetric)

form

solid

potency

12930 mg/kg LD50, oral (Rat)

impurities

≤0.005% Insoluble matter

pH

8.7-9.3 (25 °C, 50 g/L in H2O)

mp

48 °C (Elimination of water of crystallisation)

solubility

154 g/L

density

1.68 g/mL at 25 °C (lit.)

bulk density

800 kg/m3

anion traces

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

cation traces

Fe: ≤0.001%, heavy metals: ≤0.001%

storage temp.

2-30°C

SMILES string

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

InChI

1S/2Na.H3O4P.7H2O/c;;1-5(2,3)4;;;;;;;/h;;(H3,1,2,3,4);7*1H2/q2*+1;;;;;;;;/p-2

InChI key

PYLIXCKOHOHGKQ-UHFFFAOYSA-L

Analysis Note

Assay (acidimetric): 98.0 - 102.0 %
Identity: passes test
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water, 25 °C): 8.7 - 9.3
Chloride (Cl): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (ACS): ≤ 0.001 %
Fe (Iron): ≤ 0.001 %
Corresponds to ACS

Other Notes

Replaces: SX0715; SX0715-3; SX0715-20

Legal Information

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


Still not finding the right product?


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





Global Trade Item Number

SKUGTIN
1.06575.100004022536752358