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Merck
CN

255793

Sodium phosphate dibasic

99.95% trace metals basis

Synonym(s):

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

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About This Item

Linear Formula:
Na2HPO4
CAS Number:
Molecular Weight:
141.96
PubChem Substance ID:
eCl@ss:
38070211
UNSPSC Code:
12352302
NACRES:
NA.23
EC Number:
231-448-7
MDL number:
Assay:
99.95% trace metals basis
Form:
solid
Solubility:
water: soluble
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Quality Level

assay

99.95% trace metals basis

form

solid

reaction suitability

core: sodium

impurities

≤550.0 ppm Trace Metal Analysis

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

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

Application

Sodium phosphate dibasic is widely used to prepare phosphate buffer for mobilephase for HPLC and cell separation techniques.


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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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Global Trade Item Number

SKUGTIN
255793-10G04061826031377
255793-50G04061826031759