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What is the difference between distilled water and ddH2OWhat is there in distilled water that is not present is ddH2O?
Wiki User
∙ 15y ago
A number of buildings have a central distillation system that supplies the whole building with distilled water that is relatively free of ions. In the past this water was again filtered by individual filtration systems by distillation to produce double distilled water. Nowadays, however, reverse osmosis is generally used so the water is called double deionized water instead. ddH20 is much more pure than dH20. Additionally many labs have their own filtration systems to produce ddH20. This means that dH20 has to pass through the building's pipes where it can pick up contaminants whereas ddH20 is purified and then passes through a series of plastic tubes where it is much less likely to pick up additional dirt, particles, or microbes.
Wiki User
∙ 15y ago
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