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S3397

Sodium phosphate dibasic

Name: Sodium phosphate dibasic
Brand: SIGMA

suitable for electrophoresis, ≥99%

Synonym(s):

sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate

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About This Item

Linear Formula:

Na₂HPO₄

CAS Number:

7558-79-4

Molecular Weight:

141.96

PubChem Substance ID:

24899559

eCl@ss:

38070211

UNSPSC Code:

12161700

EC Number:

231-448-7

MDL number:

MFCD00003496

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Properties

assay

≥99%

technique(s)

electrophoresis: suitable (for Weber and Osborn system buffers)

impurities

≤0.01% Insoluble matter

pH

8.7-9.3 (25 °C, 5% in solution)

pKa (25 °C)

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

anion traces

chloride (Cl^-): ≤0.002%, sulfate (SO₄^2-): ≤0.005%

cation traces

Fe: ≤0.002%, heavy metals (as Pb): ≤0.001%

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

Description

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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