Abstract: A metering apparatus for flowable preparations includes a metering unit having an energy source, a control unit and a sensor unit. A container for a first flowable preparation, such as a detergent, cleaning agent, or fragrance, is removably couplable to the metering unit. A micropump that has a specific delivery quantity of less than 500 l/min is provided in the metering unit. The micropump can be controlled by the control unit to dispense flowable product from the container into a desired system external to the metering apparatus, such as a dishwasher, washing machine, toilet, air freshening system, and the like.

Abstract: Hard surface cleaning agents comprising a macrocyclic compound of the general formula L: wherein each of n1, n2 and n3 independently represents 1 or 2; and hard surface cleaning agents comprising a transition metal complex of the general formula (I): [MLaXb]cY??(1) wherein M represents a metal selected from the group consisting of manganese, iron, cobalt, copper, ruthenium, molybdenum, and combinations thereof; X represent a neutral or anionic ligand; Y represents a non-complex-bound anion; a represents 1 or 2; each of b and c independently represents a number of 0 to 6, with the proviso that b and c are selected such that the complex is neutral based on M, X and Y; and L represents a macrocyclic ligand of the general formula L; and methods of cleaning hard surfaces therewith.