High purity water: water that has been purified to a very high degree, with very low levels of impurities. This can include dissolved salts, minerals, metals, organic compounds, and microorganisms. The level of purity of high purity water is typically measured in parts per million (ppm) or parts per billion (ppb)
There are different standards and definitions for high purity water, depending on the industry or application. In general, the level of purity required for high purity water is determined by the intended use of the water.
In general, high-purity water is water that has been treated to remove impurities, such as dissolved salts, dissolved gases, and particulate matter, to a level that is suitable for a particular application.
High purity water is used in a variety of industries for various applications. Some of the main industries and their uses of high purity water include:
1. Semiconductor industry: High purity water is used in the manufacturing of semiconductor devices. It is used as a coolant and solvent, and also as a source of ultra-pure chemicals and gases. The water must meet very strict specifications for impurities, such as total dissolved solids (TDS) and conductivity.
2. Pharmaceutical and biotech industry: High purity water is used in the production and formulation of drugs, and must meet strict standards for bacterial and endotoxin levels. It is used for cleaning and sanitizing equipment, and also as an ingredient in some drugs.
3. Power industry: High purity water is used in the generation of electricity in power plants, particularly in nuclear and coal-fired power plants. It is used as a coolant and also to remove impurities from the steam used to generate electricity.
4. Food and beverage industry: High purity water is used in the production and processing of food and beverages. It is used for cleaning and sanitizing equipment, and also as an ingredient in some foods and beverages.
5. Laboratory and research industry: High purity water is used in laboratory and research applications, such as in the production of reagents, buffers and other solutions.
6. Cosmetics and personal care industry: High purity water is used in the production of cosmetic and personal care products, such as skin creams, lotions, and shampoos.
7. Chemical industry: High purity water is used in the production of chemicals, such as acids and bases, and also as a solvent in many chemical reactions.
8. Industrial water treatment: High purity water is used in the treatment of industrial waste water, to remove impurities from the water before it is released back into the environment.
9. Automotive : High purity water is used throughout the automotive production process to rinse parts. The use of high-purity water is especially critical in the paint process to ensure no impurities impact the final finish of the part or automobile.