The effect of salt on catalytic activity is highly dependent on the type of salt and the nature of the catalytic system. In some cases, salts can enhance the activity by promoting the formation of active catalytic species. For example, in enzyme catalysis, salts can stabilize the enzyme's structure and enhance its activity. Conversely, certain salts can inhibit catalytic processes by competing with reactants for active sites or by precipitating the catalyst out of the solution.
