impurities
Impurities are unwanted substances that are mixed with a pure material, affecting its quality and properties. For example, in water, impurities can include minerals, bacteria, or chemicals that may alter its taste or safety. In metals, impurities can weaken the material, making it less effective for construction or manufacturing.
In many industries, removing impurities is crucial to ensure product quality. For instance, in the production of pharmaceuticals, even tiny amounts of impurities can lead to ineffective or harmful medications. Therefore, processes like filtration and purification are often employed to achieve higher purity levels in various materials.