Merck
  • S4641
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S4641

Sigma-Aldrich

Sodium citrate tribasic dihydrate

ACS reagent, ≥99.0%

Synonym(s):
Citric acid trisodium salt dihydrate, Trisodium citrate dihydrate
Linear Formula:
HOC(COONa)(CH2COONa)2 · 2H2O
CAS Number:
Molecular Weight:
294.10
Beilstein:
6104939
Número de EC:
Número MDL:
ID de la sustancia en PubChem:
NACRES:
NA.21

grado

ACS reagent

Nivel de calidad

ensayo

≥99.0%

impurezas

≤0.003% Ammonia (NH3)
≤0.005% Insoluble matter

pH

7.0-9.0 (25 °C, 5% in solution)

mp

>300 °C (lit.)

solubilidad

water: soluble 29.4 g/L at 20 °C (completely)

trazas de anión

chloride (Cl-): ≤0.003%
sulfate (SO42-): ≤0.005%

trazas de catión

Ca: ≤0.005%
Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

SMILES string

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

InChI

1S/C6H8O7.3Na.2H2O/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);;;;2*1H2/q;3*+1;;/p-3

InChI key

NLJMYIDDQXHKNR-UHFFFAOYSA-K

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This Item
C7254C8532C3434
assay

≥99.0%

assay

≥98%

assay

≥99%

assay

≥99.0% (titration)

mp

>300 °C (lit.)

mp

>300 °C (lit.)

mp

>300 °C (lit.)

mp

>300 °C (lit.)

solubility

water: soluble 29.4 g/L at 20 °C (completely)

solubility

water: soluble 100 mg/mL

solubility

water: soluble 100 mg/mL

solubility

H2O: 0.1 M at 20 °C, clear, colorless

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

grade

ACS reagent

grade

-

grade

for molecular biology

grade

-

impurities

≤0.003% Ammonia (NH3)

impurities

-

impurities

-

impurities

Insoluble matter, passes filter test

Aplicación

Sodium citrate tribasic dihydrate can be used as a catalyst to synthesize:     
  • Fused O- and N-heterocyclic derivatives via multicomponent Knoevenagel-cyclocondensation of isatin/aldehyde/ acenaphthylene-1,2-dione, malononitrile, and various C−H activated acids.     
  • Chromeno[3′,4′:5,6]pyrano[2,3-d]pyrimidines by the condensation reaction of 4-hydroxycoumarin, aromatic aldehydes, and barbituric acid/thiobarbituric acid.

It can also be used as:      
A reducing agent to synthesize metal nanoparticles via sol-gel method using corresponding metal salt precursors.    
A controlling agent in the synthesis of single-crystal of coordination polymer [Co(H2O)2Ni(CN)4 4H2O].

Código de clase de almacenamiento

11 - Combustible Solids

WGK

WGK 1

Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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