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Merck
CN

S2429

Sodium phosphate dibasic heptahydrate

meets USP testing specifications

Synonym(s):

Disodium hydrogen phosphate heptahydrate, Disodium phosphate

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About This Item

Linear Formula:
Na2HPO4 · 7H2O
CAS Number:
Molecular Weight:
268.07
NACRES:
NA.25
PubChem Substance ID:
UNSPSC Code:
12161700
EC Number:
237-707-0
MDL number:
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agency

meets USP testing specifications

Quality Level

vapor density

4.9 (vs air)

assay

98.0-100.5% dry basis

form

powder, crystals or chunks

pH

9.0-9.3 (25 °C, 50 g/L)

solubility

water: ~35.8 g/L at 20 °C

density

1.68 g/mL at 25 °C (lit.)

application(s)

pharmaceutical (small molecule)

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



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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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