Camacho, DM, Roberts, KJ, Lewtas, K et al. (1 more author) (2015) The crystal morphology and growth rates of triclinic N-docosane crystallising from N-dodecane solutions. Journal of Crystal Growth, 416. 47 - 56. ISSN 0022-0248
Abstract
A detailed analysis of the crystal morphology of triclinic n-docosane (C22H46) is presented together with a preliminary assessment of the supersaturation-dependence of the growth rates for the predicted (hkl) faces. A methodology to index the experimentally observed crystal faces, based on a combined BFDH and zone axis methodology is defined. Analysis using this methodology yields the morphological indexation of n-docosane to be (001), (112), (102), (010), and (1 - 33) or (130) based on the expected triclinic crystal structure. Crystals of n-docosane growing from supersaturated n-dodecane (C12 H26) solutions, as studied using in-situ optical microscopy, at three different supersaturation (σ) levels 0.01, 0.02 and 0.05, reveal that the crystal morphology changes with increasing in supersaturation, evolving from a habit consistent with a triclinic crystal system to a habit that is perhaps more representative of an orthorhombic structure. Growth rates determined for the (112) and (102) faces as well as for those less dominant faces range between 0.51 and 9.85 mm/s, in good agreement with previously reported data for other organic molecules including n-alkanes.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2015, The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
Keywords: | A1. Morphological analysis; A1. BFDH and zone axis methods; A1. Crystal growth kinetics and rates; A1. In-situ optical microscopy; A1. Kinetic roughening; B1. N-alkanes |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Institute for Particle Science and Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 04 Sep 2015 08:28 |
Last Modified: | 01 Mar 2019 13:23 |
Published Version: | http://dx.doi.org/10.1016/j.jcrysgro.2015.01.006 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.jcrysgro.2015.01.006 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:84727 |