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| International Agrophysics |
| wydawca: | Instytut Agrofizyki
im. B. Dobrzańskiego
PAN
w Lublinie |
| ISSN: |
0236-8722 |
vol. 20, nr. 3 (2006)
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poprzedni artykuł wróć do listy artykułów następny artykuł
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Electron microscope study of NaCl- and Pb(CH3COO)2-treated kaolinite
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| (pobierz wersję PDF )
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G.V. Kharitonova1, A.S. Manucharov2, N.I. Chernomorchenko2, I.A.Pavluykov3
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1 nstitute of Aquatic and Ecological Problems, Far East Division, Russian Academy of Sciences, 65 Kim-Yu-Chen Str., Khabarovsk, 680000 Russia |
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2 Faculty of Soil Science, Moscow State University, Vorob’evy gory, Moscow, 119899 Russia |
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3 Institute of Tectonics and Geophysics, Far East Division, Russian Academy of Sciences, 65 Kim-Yu-Chen Str., Khabarovsk, 680000 Russia |
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vol. 20 (2006), nr. 3,
pp. 177-181
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streszczenie
The interaction of NaCl and Pb(CH3COO)2 with kaolinite was studied using scanning electron microscopy (SEM). Multiple ordered stacks or ‘quasi-crystals’ (up to 1 mm in diameter and up to 2 mm in height) and their assemblies (up to 10 mm in size) have been detected under treatment of kaolinite with NaCl- solution. ‘Quasi-crystals’ are symmetrically ordered stacks in which equal in size kaolinite platelets are packed plane to plane. The one-dimensional orientational and translational order is assumed to be strong within the stacks, along the axis of the stacks, whereas the symmetry is breaking when leaving a given stack and passing from one stack to another in assemblies of ‘quasi-crystals’. The ‘quasi-crystals’ of NaCl-treated kaolinite are partially preser- ved after dialysis. Under treatment of kaolinite with Pb(CH3COO)2 flat ‘quasi-crystals’ are formed from original kaolinite particles packed edge to edge, from 1 to 3 mm in size and their textured aggregates up to 7 mm in size. ‘Quasi-crystals’ in textured aggregates are packed plane to plane with a shift. Neoformations of Pb(CH3COO)2-kaolinite are metastable to dialysis.
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słowa kluczowe
kaolinite, NaCl, Pb(CH3COO)2, scanning electron microscopy
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