Sodium Acetate A.R. Grade is available as an agglomerate and a powder (anhydrous) as well as a crystal (trihydrate). Sodium Acetate trihydrate is very soluble in water. Sodium Acetate A.R. Grade agglomerate offers the properties of non- dustiness, improved wettability, higher reactivity, higher bulk density and improved free-flowability. Sodium Acetate A.R. Grade, CH₃COONa, also abbreviated NaOAc, also known as sodium ethanoate, is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses.