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Isothermal Titration Calorimetry in the Student Laboratory
Division of Building Materials, Lund University, Sweden.
Division of Building Materials, Lund University, Sweden.ORCID-id: 0000-0002-0516-9070
Applied Chemistry, Wuhan University of Technology, Wuhan, Hubei, China.
2011 (Engelska)Ingår i: Journal of Chemical Education, Vol. 88, nr 1, s. 101-105Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Isothermal titration calorimetry (ITC) is the measurement of the heat produced by the stepwise addition of one substance to another. It is a common experimental technique, for example, in pharmaceutical science, to measure equilibrium constants and reaction enthalpies. We describe a stirring device and an injection pump that can be used with a previously described isothermal calorimeter to perform ITC measurements. Two experiments are also described: an acid−base titration and the binding of Ba2+ to the macrocyclic compound 18-crown-6. These experiments visualize the difference between strong and weak interactions (large and small equilibrium constants) and introduce how reaction enthalpies and equilibrium constants can be calculated from titration calorimetric experiments.

Ort, förlag, år, upplaga, sidor
American Chemical Society (ACS), 2011. Vol. 88, nr 1, s. 101-105
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Analytisk kemi Fysikalisk kemi
Identifikatorer
URN: urn:nbn:se:mau:diva-48287DOI: 10.1021/ed100649eOAI: oai:DiVA.org:mau-48287DiVA, id: diva2:1621854
Tillgänglig från: 2021-12-20 Skapad: 2021-12-20 Senast uppdaterad: 2023-01-02Bibliografiskt granskad

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