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  1. Dictionary
    impurity
    /ɪmˈpjʊərɪti/

    noun

    More definitions, origin and scrabble points

  2. Jun 25, 2024 · Impurity Definition. An impurity is defined as a foreign element or substance present within a batch of material, which is not the primary constituent and may alter the intended effect or properties of the material. Impurities can arise from multiple sources such as raw material defects, production processes, storage conditions, and even during ...

  3. Jul 13, 2024 · The meaning of IMPURITY is something that is impure or makes something else impure. How to use impurity in a sentence.

  4. Jul 14, 2024 · Sources and types of impurities: Pharmaceutical Inorganic Chemistry. Following are the sources of contamination of any drug product: Raw materials. Pharmaceutical chemicals may be obtained from plant or animal sources or can be synthesized from chemical materials. But complete separation is not possible so unwanted products cause contamination.

  5. Jul 16, 2024 · Definition. A practical definition of water pollution is: "Water pollution is the addition of substances or energy forms that directly or indirectly alter the nature of the water body in such a manner that negatively affects its legitimate uses.": 6 Water is typically referred to as polluted when it is impaired by anthropogenic contaminants.

  6. Jul 9, 2024 · Extrinsic Semiconductor. An extrinsic semiconductor is a semiconductor material that has been intentionally modified by adding a small amount of another element to a pure or intrinsic semiconductor, like silicon and germanium. The additional element is known as a dopant or impurity, and the process of adding a dopant to an intrinsic ...

  7. 6 days ago · First-principles calculations have been widely conducted to analyze the electronic structure of defects in semiconductors and dielectrics. 4,5 These calculations have been used to understand the effects of defects on the electrical conductivity and ionic diffusion of BaTiO 3. 6,7 Numerous studies have investigated the formation energies of native and impurity defects in BaTiO 3 using several calculation methods and calculation models. 8–11 However, the calculation method and the ...

  8. Jul 13, 2024 · Electrical conductivity of water samples is used as an indicator of how salt-free, ion-free, or impurity-free the sample is; the purer the water, the lower the conductivity (the higher the resistivity). Conductivity measurements in water are often reported as specific conductance, relative to the conductivity of pure water at 25 °C.