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Sigma-Aldrich

Sodium dihydrogencitrate

99%

Synonym(s):

Citric acid monosodium salt, Sodium citrate monobasic

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About This Item

Linear Formula:
HOC(COONa)(CH2COOH)2
CAS Number:
18996-35-5
Molecular Weight:
214.11
Beilstein:
3920246
EC Number:
242-734-6
MDL number:
MFCD00013067
UNSPSC Code:
12352100
PubChem Substance ID:
24854034
NACRES:
NA.22

Quality Level

200

Assay

99%

form

solid

mp

212 °C (lit.)

solubility

water: soluble 53.5 g/L at 20 °C

SMILES string

[Na+].OC(=O)CC(O)(CC([O-])=O)C(O)=O

InChI

1S/C6H8O7.Na/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);/q;+1/p-1

InChI key

HWPKGOGLCKPRLZ-UHFFFAOYSA-M

Related Categories

General description

Freezing temperature lowerings of aqueous solutions of sodium dihydrogencitrate has been investigated.

Application

Sodium dihydrogencitrate has been employed:
  • as reductant and stabilizer during the synthesis of Fe3O4 Pt core/shell particles
  • in characterization of carbon-based electrode materials as cathode in half-cell configuration
  • in electrochemical reduction of proton at carbon fiber electrode in the presence and absence of Pt nanoparticles

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Cryoscopic studies of aqueous solutions of tartaric acid, sodium hydrogen tartrate, potassium tartrate, sodium dihydrogen citrate, potassium dihydrogen citrate, disodium hydrogen citrate, sodium citrate and potassium citrate.
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The Journal of Chemical Thermodynamics, 35(8), 1225-1236 (2003)
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