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Sigma-Aldrich

Sodium acetate

ACS reagent, ≥99.0%

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Synonym(s):
Acetic acid sodium salt
Linear Formula:
CH3COONa
CAS Number:
127-09-3
Molecular Weight:
82.03
Beilstein:
3595639
EC Number:
204-823-8
MDL number:
MFCD00012459
eCl@ss:
39021906
PubChem Substance ID:
329752574
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

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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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.

Other Notes

Go to Redi-Dri™ Product Listing 791741

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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Justin T Mohr et al.
Organic syntheses; an annual publication of satisfactory methods for the preparation of organic chemicals, 86, 194-211 (2009-01-01)
R E Kingston et al.
Current protocols in molecular biology, Chapter 4, Unit4-Unit4 (2008-02-12)
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Scientific Study and Research, 10(1), 73-82 (2009)
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Concise Encyclopedia Chemistry, 995-995 (1994)
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