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04273

Sigma-Aldrich

Sodium phosphate dibasic dodecahydrate

meets analytical specification of Ph. Eur., BP, E339, 98.5-102.5% (T)

Synonym(s):

sec-Sodium phosphate, Disodium hydrogen phosphate dodecahydrate, Disodium phosphate, di-Sodium hydrogen phosphate dodecahydrate

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About This Item

Linear Formula:
Na2HPO4 · 12H2O
CAS Number:
10039-32-4
Molecular Weight:
358.14
EC Number:
231-448-7
MDL number:
MFCD00149181
UNSPSC Code:
12161700
PubChem Substance ID:
329747907
NACRES:
NA.25

Agency

meets analytical specifications of BP
meets analytical specifications of Ph. Eur.

Quality Level

200

Assay

98.5-102.5% (T)

form

crystals

quality

meets analytical specification of Ph. Eur., BP, E339

impurities

reducing matter, complies
 residual solvents, complies
≤0.001% heavy metals (as Pb)
≤1.0% NaH2PO4
57-61% water (Karl Fischer)

loss

57-61% loss on drying

pH

8.4-9.6 (20 °C, 1%)

anion traces

chloride (Cl-): ≤10 mg/kg
fluoride (F-): ≤10 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

As: ≤1 mg/kg
Cd: ≤1 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
K: ≤50 mg/kg
Pb: ≤4 mg/kg
Zn: ≤10 mg/kg

suitability

complies for appearance of solution

SMILES string

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

InChI

1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2

InChI key

DGLRDKLJZLEJCY-UHFFFAOYSA-L

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Related Categories

Application


  • Study of the Influence of Alkalizing Components on Matrix Pellets Prepared by Extrusion/Spheronization: This publication examines the effects of sodium phosphate dibasic dodecahydrate as an alkalizing agent in matrix pellets, showcasing its application in improving the physicochemical properties of pellets, which are crucial for controlled drug delivery systems (Hamedelniel EI, Bajdik J, Kasa P Jr, Pintye-Hodi K, 2012).

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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