241245

Sodium acetate

ACS reagent, ≥99.0%

• Synonym(s): Acetic acid sodium salt
• Linear Formula: CH₃COONa
• CAS Number: 127-09-3
• Molecular Weight: 82.03
• Beilstein/REAXYS Number: 3595639
• EC Number: 204-823-8
• MDL number: MFCD00012459
• UNSPSC Code: 12352300
• eCl@ss: 39021906
• PubChem Substance ID: 329752574
• NACRES: NA.21

Properties

• 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 (PO₄^3-): ≤0.001%; sulfate (SO₄^2-): ≤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

Description

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

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1