ChemFOnt: Showing chemical card for Disodium phosphate (CFc000282941)

Record Information

Version

1.0

Creation Date

2022-08-28 10:25:12 UTC

Update Date

2022-09-14 03:35:45 UTC

Chemfont ID

CFc000282941

Molecule Identification

Common Name

Disodium phosphate

Definition

It is used in foods as a sequestrant, emulsifier, buffering agent, absorbent, pH control agent, protein modifier, source of alkalinity, stabiliser and nutrient supplement. Disodium hydrogen phosphate (Na2HPO4) is a sodium salt of phosphoric acid. It is a white powder that is highly hygroscopic and water soluble. It is therefore used commercially as an anti-caking additive in powdered products. It is also known as disodium hydrogen orthophosphate, sodium hydrogen phosphate or sodium phosphate dibasic. It is commercially available in both the hydrated and anhydrous forms.

Structure

MOL SDF PDB SMILES InChI

Synonyms

Value	Source
Dibasic sodium phosphate	ChEBI
Disodium acid orthophosphate	ChEBI
Disodium hydrogen phosphate	ChEBI
Disodium monohydrogen phosphate	ChEBI
Disodium orthophosphate	ChEBI
Disodium phosphate	ChEBI
Na2hpo4	ChEBI
Dibasic sodium phosphoric acid	Generator
Disodium acid orthophosphoric acid	Generator
Disodium hydrogen phosphoric acid	Generator
Disodium monohydrogen phosphoric acid	Generator
Disodium orthophosphoric acid	Generator
Disodium phosphoric acid	Generator
Disodium hydrogenphosphoric acid	Generator
Dibasic sodium phosphate, anhydrous	MeSH
Disodium acid phosphate	MeSH
Disodium hydrogen phosphate anhydrous	MeSH
Monosodium dihydrogen phosphate	MeSH
Neutral sodium hydrogen phosphate	MeSH
Phosphoric acid, disodium salt	MeSH
Phosphoric acid, disodium salt, 32P-labeled	MeSH
Phosphoric acid, disodium salt, anhydrous	MeSH
Phosphoric acid, disodium salt, dodecahydrate	MeSH
Phosphoric acid, disodium salt, heptahydrate	MeSH
Phosphoric acid, monosodium salt	MeSH
Phosphoric acid, monosodium salt, anhydrous	MeSH
Phosphoric acid, sodium (2:3) salt	MeSH
Phosphoric acid, sodium salt	MeSH
Phosphoric acid, trisodium salt	MeSH
Phosphoric acid, trisodium salt , 32P-labeled	MeSH
Phosphoric acid, trisodium salt , dodecahydrate	MeSH
Sodium biphosphate	MeSH
Sodium dihydrogen orthophosphate	MeSH
Sodium dihydrogen phosphate	MeSH
Sodium hydrophosphate	MeSH
Sodium phosphate	MeSH
Sodium phosphate monobasic anhydrous	MeSH
Sodium phosphate, dibasic	MeSH
Sodium phosphate, dibasic (anhydrous)	MeSH
Sodium phosphate, disodium salt	MeSH
Sodium phosphate, monobasic	MeSH
Sodium phosphate, monobasic anhydrous	MeSH
Sodium phosphate, tribasic	MeSH
Sodium phosphate, tribasic, dodecahydrate	MeSH
Trisodium phosphate	MeSH
Trisodium phosphate dodecahydrate	MeSH

Chemical Formula

HNa₂O₄P

Average Molecular Weight

141.9588

Monoisotopic Molecular Weight

141.940784382

IUPAC Name

disodium hydrogen phosphate

Traditional Name

disodium hydrogen phosphate

CAS Registry Number

7558-79-4

SMILES

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

InChI Identifier

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

Chemical Taxonomy

Description

Belongs to the class of inorganic compounds known as alkali metal phosphates. These are inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.

Kingdom

Inorganic compounds

Super Class

Mixed metal/non-metal compounds

Class

Alkali metal oxoanionic compounds

Sub Class

Alkali metal phosphates

Direct Parent

Alkali metal phosphates

Alternative Parents

Substituents

Alkali metal phosphate
Inorganic sodium salt
Inorganic oxide
Inorganic salt

Molecular Framework

Not Available

External Descriptors

sodium phosphate (CHEBI:34683 )

Functional Ontology

Physiological effect

Organoleptic effect

Odor

Odorless

Disposition

Source

Exogenous

Exogenous (HMDB: HMDB0303425)

Process

Not Available

Role

Not Available

Physical Properties

Predicted Properties

Property	Value	Source
logP	-1	ChemAxon
pKa (Strongest Acidic)	1.8	ChemAxon
Physiological Charge	-2	ChemAxon
Hydrogen Acceptor Count	4	ChemAxon
Hydrogen Donor Count	1	ChemAxon
Polar Surface Area	83.42 Å²	ChemAxon
Rotatable Bond Count	0	ChemAxon
Refractivity	12.41 m³·mol⁻¹	ChemAxon
Polarizability	5.23 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon