The effect of magnetic field on the shape of etch pits of paracetamol crystals
| Autor: | V. I. Krasheninin, T. P. Shakhtshneider, Yu. A. Zakharov, V.V. Boldyrev, V. E. Ivashchenko, A. E. Ermakov |
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| Rok vydání: | 2002 |
| Předmět: |
010302 applied physics
Materials science Hydrogen bond Mechanical Engineering 02 engineering and technology Crystal structure Activation energy equipment and supplies 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Isotropic etching Magnetic field Crystal Crystallography Mechanics of Materials 0103 physical sciences General Materials Science Dislocation 0210 nano-technology human activities Dissolution |
| Zdroj: | Materials Research Innovations. 5:214-218 |
| ISSN: | 1433-075X 1432-8917 |
| Popis: | In the present study we investigate the effect of magnetic field on the shape of etch pits of the crystals of p-hydroxyacetanilide (paracetamol), which is widely used in pharmacy as antipyretic, antiphlogistic medicine. It was discovered that the magnetic field (H=0.5 T, τ=15 min) changes the morphology of etch pits and shifts dislocations in paracetamol crystal. Activation energy of the changes induced by the action of the magnetic field was determined to be 63 kJ/mol, which is comparable with the energy of hydrogen bonds in crystal lattice. |
| Databáze: | OpenAIRE |
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