On the pH value of ammonium acetate
If you want to know the pH value of ammonium acetate, you need to understand its properties and related chemical principles. Ammonium acetate is a salt composed of acetate ion and ammonium ion.

Acetate ion, with hydrolytic properties, can bind hydrogen ions in water, making the solution alkaline trend. The reaction formula for its hydrolysis is: $CH_3COO ^ - + H_2O\ rightleftharpoons CH_3COOH + OH ^ - $.

Ammonium ions can also be hydrolyzed, and will bind hydroxide ions in water, making the solution acidic trend. The reaction formula for its hydrolysis is: $NH_4 ^ ++ H_2O\ rightleftharpoons NH_3 · H_2O + H ^ + $.

The ionization constant of acetic acid is similar to that of ammonia monohydrate. Therefore, in ammonium acetate solution, the degree of hydrolysis of acetate ion and ammonium ion is roughly the same.

From this, it can be seen that ammonium acetate solution is almost neutral, and its pH value is about 7. This is based on the relationship between the hydrolysis characteristics and ionization constants of the two. In chemical research and practical application, it is important to clarify the pH value of ammonium acetate for many experiments and production processes.