Biesterfeld Demineralized water Demineralized water, also referred to as deionized water, demineralised water or deionized water, is water (H2O) without the salts found in normal spring and tap water, which are dissolved as anions and cations It is mainly used in technical applications as fuel (for example, as a heat transfer medium in the coolant circuit of a power plant), but is also used in chemistry and biology as a solution and sometimes as a cleaning agent Certain processes or applications require so-called ultrapure water, where certain and high purity specifications must be met Container: bottle Content: 1 liter