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Laboratory Water Knowledge

1, distilled water (Distilled Water):

Most commonly used as a pure water, although cheap, but great energy and water and slow, applications will be gradually reduced. Distilled water will remove most of the pollutants in tap water, but unable to remove volatile impurities, such as carbon dioxide, ammonia, silica, and organic matter. Fresh water is sterile, store the bacteria may multiply; in addition, the storage container is also very good, if they are not inert substances, ion and the shape of the container material caused precipitation of secondary pollution.

2, deionized water (Deionized Water):

Removal of anions and cations in water by ion exchange resin, but remained soluble organic matter in water, so as to reduce the effect of pollution of ion exchange column, deionized water after storage can easily lead to the breeding of bacteria.

3, ro (Reverse Osmosis Water):

The resulting principle is under the pressure of water molecules through reverse osmosis pure water, interception of impurity by reverse osmosis membranes in water discharge. RO water overcomes the shortcomings of distilled and deionized water using reverse osmosis technology can effectively remove dissolved salts, colloids, bacteria, viruses, bacteria, toxins, and most organic impurities, but different manufacturers of reverse osmosis membranes for ro a large influence on the quality.

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