... , and other berries.[7] Another application is Cheshunt compound, a mixture of copper sulfate and ammonium carbonate used in horticulture ... for parasitic infections,[8] and is also used to remove snails from aquariums. Copper ions are highly toxic to fish, so ... theory, in various organic reactions, often utilized as a catalyst. Lowering a zinc etching plate into the copper sulfate solution.MedicalCopper ...