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Working principle of distilled water machine

2022-09-05

Distilled water machine refers to a machine that uses distillation to prepare pure water. Distilled water can be divided into one and more times. After the water is distilled once, the nonvolatile components are removed in the container, and the volatile components enter the initial fraction of distilled water. Usually, only the middle part of the fraction is collected, accounting for about 60%. To obtain more pure water, alkaline potassium permanganate solution can be added to the primary distilled water to remove organics and carbon dioxide; Non volatile acid is added to make ammonia a non-volatile ammonium salt. Since glass contains a small amount of water-soluble components, quartz distillation vessels should be used for secondary or multiple distillation to obtain very pure water, and the resulting pure water should be stored in quartz or silver containers.

Working principle of the distilled water machine: the production is to boil the source water and make it evaporate, condense and recover. It needs a lot of heat energy, and the cost is not too low. Other evaporation substances in the source water used to make distilled water will condense into the distilled water with the generation of distilled water, such as phenols, benzene compounds harmful to health, and even vaporizable mercury. In order to get pure water or ultrapure water, we must go through two or three times of distillation and add other purification methods.

Application of distilled water machine: in life, when it is generally related to machines and electrical appliances, distilled water is mainly non-conductive to ensure stable operation of machines and prolong the service life of electrical appliances. In the pharmaceutical industry, the effect of distilled water is due to its low permeability. Wash the surgical wound with distilled water to make the tumor cells that may remain on the wound absorb water, swell, rupture, necrosis and lose their activity, so as to avoid tumor planting and growth on the wound. Some chemical experiments in schools need distilled water, which is free of electrolytes, free ions or impurities. You need to analyze specific problems in detail to see whether it uses its non-conductive property, its low permeability, or the effect that there are no other ions and no chemical reactions.

Characteristics of distilled water machine: alkaline potassium permanganate solution can be added to the primary distilled water to remove organic matters and carbon dioxide; A nonvolatile acid (sulfuric acid or phosphoric acid) is added to make ammonia a nonvolatile ammonium salt. Since glass contains a small amount of water-soluble components, quartz distillation vessels should be used for secondary or multiple distillation to obtain very pure water. The resulting pure water should be stored in quartz or silver containers






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