Salt tablets are tablets of sodium chloride (NaCl). Salt tablets is prepared from iodized, ekstrafine, recrystallized salt of high purity which is applicable for water softening.

Feedwater, feed water is treated water used in boiler (steam generator) for generation of steam (for the operation of steam turbines) or hot water in thermal power plants and other power plants (nuclear power plants, bioenergy, CHPPs).

Reverse osmosis, reverse osmosis is used to purify water and removal of inorganic minerals, salts and other impurities in order to improve the appearance, taste and other properties of the water. Proper maintenance of reverse osmosis system include using of approved chemicals. It is necessary to use chemicals for conditioning membranes, reducing scales and disinfection.