Group: E200–E299 (preservatives)
Sodium acetate, CH₃COONa, also abbreviated NaOAc, is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses.
Sodium acetate may be added to food as a seasoning, sometimes in the form of sodium diacetate, a one-to-one complex of sodium acetate and acetic acid, given the E-number E262.
It is often used to give potato chips a salt and vinegar flavor.
Sodium diacetate
Sodium diacetate is a compound with formula NaH(C₂H₃O₂)₂.
It is a salt of acetic acid. It is a colorless solid that is used in seasonings and as an antimicrobial agent.
It is used to impart a salt and vinegar flavor.