CH3COO2NH4

The chemical formula CH3COO2NH4 does not represent a recognized stable chemical compound. It appears to be a misunderstanding or typographical error in the notation. The acetate ion has the formula CH3COO-. Ammonium has the formula NH4+. When these two ions combine to form an ionic compound, the correct formula is CH3COONH4, which is ammonium acetate.

Ammonium acetate (CH3COONH4) is a salt composed of ammonium cations (NH4+) and acetate anions (CH3COO-). It is a white, crystalline solid that is readily soluble in water. In aqueous solution, it dissociates into its constituent ions. Ammonium acetate is a weak electrolyte. It can be prepared by the reaction of acetic acid with ammonia or ammonium carbonate.

Ammonium acetate has various applications. It is used as a food additive, often as a buffering agent or a flavor enhancer. In medicine, it has been historically used as an expectorant. It also finds use in the textile industry as a mordant, assisting in the dyeing process. In laboratory settings, it can serve as a source of acetate and ammonium ions for chemical reactions and as a buffer in certain biochemical procedures. The decomposition of ammonium acetate upon heating can produce acetamide and water.