Dishwashing detergents; combination cleaners, fresheners and deodorizers for machine dishwashers; rinse agents for machine dishwashers; decalcifying and descaling preparations for household use[; salts for use in machine dishwashers, namely, dishwasher additives for softening water, preventing limescale accumulation on the dishwasher and on glasses and dishes, and for increasing the cleaning power of dishwashing detergent]