W239901

Sigma-Aldrich

Sodium phosphate dibasic

FG

Synonym(s):
Sodium hydrogenphosphate, Disodium phosphate, Disodium hydrogen phosphate, sec-Sodium phosphate
Linear Formula:
Na2HPO4
CAS Number:
Molecular Weight:
141.96
FEMA Number:
2398
EC Number:
MDL number:
PubChem Substance ID:
E Number:
E 339

Quality Level

biological source

synthetic

grade

FG

reg. compliance

EU Regulation 1333/2008 & 178/2002
FDA 21 CFR 117
FDA 21 CFR 182.1778
FDA 21 CFR 182.6290

form

powder

pH

8.9-9.2 (25 °C, 50 g/L in water)

pKa (25 °C)

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

solubility

water: soluble

Documentation

see Safety & Documentation for available documents

Featured Industry

Flavors and Fragrances

Organoleptic

odorless

food allergen

no known allergens

SMILES string

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

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

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WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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