Ammonium acetate is widely used in biochemical research as a buffer in HPLC and LC-MS analyses, helping to maintain a stable pH during the separation and detection of compounds. It is also employed in protein purification and crystallization processes due to its compatibility with biological molecules. In organic synthesis, it serves as a source of ammonia and acetate ions, facilitating various reactions such as the preparation of acetamides. Additionally, it is utilized in the manufacturing of foam rubber and vinyl plastics as a stabilizer and catalyst. Its role in preserving and stabilizing food products further highlights its versatility in industrial applications.