Ammonium acetate readily dissolves CaCO3. Is it due to ammonium acetate decomposition or due to chelating properties of ammonium acetate? How to check?
In case of chelating properties it should increase the solubility of calcium salts. Good salt to check is gypsum.
I dissolved some ammonium acetate in 50 ml of water. Then I added gypsum into it. Some 2 grams of gypsum were dissolved. Solubility of gypsum is 0.2 grams per 100 ml of water. It means that ammonium acetate increased the solubility of gypsum in 20 times. Ammonium acetate definetely has chelating properties.
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