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241245

Sigma-Aldrich

Sodium acetate

ACS reagent, ≥99.0%

Synonym(s):
Acetic acid sodium salt
Linear Formula:
CH3COONa
CAS Number:
Molecular Weight:
82.03
Beilstein:
3595639
EC Number:
MDL number:
eCl@ss:
39021906
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

Assay

≥99.0%

form

solid

autoignition temp.

1112 °F

impurities

≤0.01% insolubles

loss

≤1.0% loss on drying

pH

7.0-9.2 (25 °C, 5%)

pKa 

4.76 (acetic acid)

mp

>300 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤0.002%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.003%

cation traces

Ca: ≤0.005%
Fe: ≤0.001%
Mg: ≤0.002%
heavy metals: ≤0.001% (by ICP-OES)

suitability

complies for IR spectroscopy

SMILES string

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

InChI

1S/C2H4O2.Na/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1

InChI key

VMHLLURERBWHNL-UHFFFAOYSA-M

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Sodium acetate

grade

ACS reagent

grade

anhydrous

grade

ACS reagent, anhydrous

grade

-

assay

≥99.0%

assay

≥99.0%

assay

≥99.0%

assay

≥99.0%

form

solid

form

solid

form

solid

form

solid

impurities

≤0.01% insolubles

impurities

-

impurities

≤0.01% insolubles

impurities

≤0.0005% Phosphorus (P), <0.01% Insoluble matter

pH

7.0-9.2 (25 °C, 5%)

pH

8.5-9.9 (25 °C, 246 g/L)

pH

7.0-9.2 (25 °C, 5%)

pH

8.5-9.9 (25 °C, 246 g/L)

mp

>300 °C (dec.) (lit.)

mp

>300 °C (dec.) (lit.)

mp

>300 °C (dec.) (lit.)

mp

>300 °C (dec.) (lit.)

General description

Sodium acetate is a hydrophilic organic compound that can be prepared by treating acetic acid with sodium carbonate or sodium hydroxide. It acts as neutralizing agent, catalyst, food additive, and buffer to maintain a specific pH.

Application

Sodium acetate can be used as a base to synthesize:
  • Oxazolones via Erlenmeyer Plochl condensation reaction of aromatic aldehydes and hippuric acid.
  • Cinnamic acids via Perkin reaction between aromatic aldehydes and acid anhydrides.
A mixture of sodium acetate-acetic acid buffer can be employed in the polybromination of substituted imidazoles to synthesize polybrominated imidazoles.

It can also be used as a catalyst in tandem Knoevenagel-Michael multicomponent reactions.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

11 - Combustible Solids

WGK

WGK 1


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