The water supply system commonly used in physical and chemical laboratories is an ultra-pure water machine, because the substances contained in the water produced by ordinary pure water machines will affect the quality of the experiment, so it cannot meet the requirements of physical and chemical experiments . Next, let me learn more about physics and chemistry experiments. The difference between pure water machine and ordinary pure water machine.
difference in principle
The water produced by the pure water machine is pure water. Pure water, also known as pure water, refers to water that meets the sanitary standards for drinking water as raw water. The ultrapure water machine is the sublimation of the pure water machine, that is, the ultrapure water further removes the conductive medium in the water almost completely on the basis of pure water, and removes the non-dissociated colloidal substances, gases and organic substances in the water to a very low level. degree of water. Ultrapure water is a level that is difficult to achieve with general processes. Only through reasonable process design and equipment selection can ultrapure water be produced.
Difficulty of manufacture varies
The pure water currently used in the market is basically obtained through reverse osmosis, distillation and other methods, while ultrapure water is based on pure water and also undergoes a series of complex purifications such as photooxidation technology, finishing treatment and polishing treatment. made by technology.
Different indicators: indicators such as heavy metals, bacteria, and particle numbers are also quite different. The impurity content of pure water is at the ppm level, while that of ultrapure water is at the ppb level. Simply put, there are no impurities in ultrapure water, which is close to the theoretical water. .
Different requirements: the requirements for the material of the pipeline are also different, and the requirements for the material of the pipeline for ultrapure water are much stricter than those for ultrapure water.
The ultrapure water machine and the pure water machine are different in the working principle, water production process and accessories materials. The water produced by the ultrapure water machine is much higher than the standard of the pure water machine. Improve the accuracy of experimental results.
