Sodium Acetate. Sodium Acetate Trihydrate . Sodium Acetate, Anhydrous . Acetate Trihydrate, Sodium . Acetate, Sodium . Anhydrous Sodium Acetate . Trihydrate, Sodium Acetate . The trihydrate sodium salt of acetic acid, which is used as a source of sodium ions in solutions for dialysis and as a systemic and urinary alkalizer, diuretic, and expectorant. . 1.00