Views: 23 Author: Site Editor Publish Time: 2023-03-31 Origin: Site
Pure water, also known as purified water, refers to water that meets the standard for drinking water, and is water that can be directly supplied for drinking after the source water is treated by ion exchange, reverse osmosis, distillation or other methods and then sealed and kept in a container. Yibao or Wahaha sold in the market belong to pure water.
Ultra-pure water is purified by ultra-pure water apparatus on the basis of pure water, and its electrolytes are completely removed so that it is close to the real meaning of water, containing almost only water molecules. The electrical resistance is close to the limit value of 18.25MΩ.
Electrical conductivity
The conductivity of pure water is between 2 and 10 us/cm, while the conductivity of ultrapure water is 0.056 us/cm.
The process and difficulty of production
Pure water is made by ion exchange method, reverse osmosis method, distillation method, while ultra-pure water is also processed on the basis of pure water, made by a series of complex purification techniques such as photo-oxidation technology, fine treatment and polishing treatment.
Impurity content
Pure water impurity content is ppm level, and ultra-pure water for ppb level, simply put ultra-pure water has no impurities, close to theoretical water.
Applications
Pure water is mainly supplied to people for drinking, while ultra-pure water is supposed to other fields such as medicine, semiconductor, polishing, etc.
Treatment method
Pure water is mainly made by pretreatment and reverse osmosis of pure water equipment, while ultra-pure water is made by pretreatment, reverse osmosis and ultra-purification system of ultra-pure water apparatus.
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