Epochem deionized water is water that has had almost all of its mineral ions removed, such as cations like sodium, calcium, iron, and copper, and anions such as chloride and sulfate.
Uses of Deionized water includes
Deionized water is essential in different applications like laboratory experiments, cosmetics, electronics manufacturing, food processing, metallurgy, and other industrial processes. Impurities in water may cause interference which may cause undesirable results.
Water contaminated with ions ie: calcium, magnesium, iron, salts or other ions is also more electrically conducive and may not be suitable for some applications.