Deionized Water & Definition
Deionized water, sometimes called demineralized water, is water that has had all minerals removed from it using an ion exchange process. Deionized water has many uses, but it is not the same as purified or distilled water. Does this Spark an idea?
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Process
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Water is deionized by a process called ion exchange. Water is placed in a container with a special resin that is negatively charged. The resin attracts minerals, such as sodium and calcium, removing them from the water.
Function
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Deionized water is often used in the scientific community in laboratory tests for which pure water is required. It is also used when pure water is required as an ingredient for manufacturing products such as cosmetics or during the production of electronics. Car washes also use deionized water, sometimes calling it "soft water." The lack of minerals and other containments can cut down on water spots from washing.
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Safety
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A 2004 study by the World Health Organization found that deionized water can cause intestinal damage and promote the growth of bacteria in the body. Food cooked with deionized water has less calcium and other healthy elements, and the water itself is usually lacking in many of the positive elements found in regular water.
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References
Resources
- Photo Credit water drop is falling down and impact with water surface image by Alexander Potapov from Fotolia.com
