Sodium acetate, CH3COONa, also abbreviated NaOAc. also sodium ethanoate, is the sodium salt of acetic acid. This colourless salt has a wide range of uses.Sodium acetate may be added to foods as a seasoning. It may be used in the form of sodium diacetate — a 1:1 complex of sodium acetate and acetic acid, given the E-number E262. A frequent use is to impart a salt and vinegar flavor to potato chips.
ITEM
STANDARD
Appearance
Colorless crystals, slight acetic acid odor
Assay (dry basis, %)
99.0-101.0
pH (5% Solution, 25℃)
7.5- 9.0
Loss on Drying (120℃, 4h, %)
36.0 – 41.0
Insoluble Matter (%)
=< 0.05
Chlorides (Cl, %)
=< 0.035
Alkalinity (as Na2CO3, %)
=< 0.05
Phosphate (PO4)
=< 10 mg/kg
Sulphate (SO4)
=< 50 mg/kg
Iron (Fe)
=< 10 mg/kg
Arsenic (As)
=< 3 mg/kg
Lead (Pb)
=< 5 mg/kg
Mercury (Hg)
=< 1 mg/kg
Heavy Metal (as Pb)
=< 10 mg/kg