deioniseerd

Deioniseerd water, often abbreviated as DI water, is water that has had virtually all of its mineral and salt ions removed. This process is achieved through deionization, a method of water purification that uses ion-exchange resins. These resins are specially manufactured materials that attract and bind ions such as sodium, chloride, calcium, and magnesium. As water passes through a bed of these resins, the dissolved ions in the water are exchanged for hydrogen (H+) and hydroxide (OH-) ions from the resin. These ions then recombine to form pure water (H2O).

The primary purpose of deionization is to produce highly pure water, as the presence of ions can interfere with various industrial processes and scientific experiments. For instance, in the semiconductor industry, even trace amounts of ions can cause defects in microchips. In laboratories, deionized water is crucial for preparing solutions, cleaning glassware, and conducting experiments where the presence of impurities could skew results. It is also used in automotive applications, such as in car batteries and cooling systems, to prevent mineral buildup and corrosion. While deionized water is very pure, it is not the same as distilled water, which is purified by boiling and condensing steam. Deionization is typically a more cost-effective and continuous method for producing large quantities of purified water compared to distillation.