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Sigma-Aldrich

Sodium phosphate dibasic dodecahydrate

tested according to Ph. Eur.

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Synonym(s):
Dinatrii phosphas dodecahydricus, sec-Sodium phosphate, Disodium hydrogen phosphate dodecahydrate, Disodium phosphate, di-Sodium hydrogen phosphate dodecahydrate
Linear Formula:
Na2HPO4 · 12H2O
CAS Number:
Molecular Weight:
358.14
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Agency

USP/NF
tested according to Ph. Eur.

Quality Level

Assay

98.5-102.5%

form

crystalline

solubility

water: ~35.8 g/L at 20 °C

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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1 of 4

This Item
1.065791.0657371650
assay

98.5-102.5%

assay

99.0-102.0% (alkalimetric)

assay

-

assay

≥99.0% (T)

form

crystalline

form

solid

form

crystalline, solid

form

crystals

solubility

water: ~35.8 g/L at 20 °C

solubility

218 g/L

solubility

218 g/L

solubility

water: soluble 35.8 g/L at 20 °C

Quality Level

200

Quality Level

300

Quality Level

500

Quality Level

200

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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