Product Description Product Description Ammonium Acetate (CH3 COONH4 , CAS 631-61-8) is a white crystalline salt with a slight acetic odor. It is the ammonium salt of acetic acid and is well known for its excellent water solubility and neutral buffering behavior. This 99% industrial grade product is produced under strict ISO quality control with low heavy metal content, offering a reliable buffer salt and chemical intermediate for manufacturing and processing industries.