This water is a cation-free liquid such as sodium, calcium, iron, copper, among others, and free anions such as carbonate, fluoride, chloride and others; deionized water can change its pH with ease of storage, according to some experts it is important to know that deionized water by not carrying salts if consumed directly by the human causes harmful anemia, because carbon dioxide easily dissolves and acidifies the water, so it would be dangerous for the body. The use of this water is restricted to laboratories, where loose ions can cause alterations in the required results, there are a large number of applications of this water in industries, research, experiments, other researchers point out that it is a myth that this water is harmful to health, of course it is in limited consumption.