dc.contributor.author |
Clark, Maxwell William |
|
dc.date.accessioned |
2011-03-10T22:52:24Z |
|
dc.date.accessioned |
2022-10-25T04:32:11Z |
|
dc.date.available |
2011-03-10T22:52:24Z |
|
dc.date.available |
2022-10-25T04:32:11Z |
|
dc.date.copyright |
1966 |
|
dc.date.issued |
1966 |
|
dc.identifier.uri |
https://ir.wgtn.ac.nz/handle/123456789/23166 |
|
dc.description.abstract |
This thesis describes the kinetic study of the dehydroxylation of crocidolite. The reaction studied can be represented by the idealized equation:
The reaction was studied under vacuum conditions and followed primarily by a weight loss method. The experimental results have been compared with theoretical models for solid state reactions. The results of the dehydroxylation can be explained over the complete reaction range by a diffusion controlled mechanism. It is postulated that oxygen ions are the diffusing species and this postulation agrees with previous x-ray studies and activation energies of diffusion of oxygen in an oxygen lattice. It is shown that the particle controlling diffusion has a radius of less than 30 microns, and it is assumed that these particles are the individual fibres. The enthalpy of activation for the dehydroxylation has been determined, 46 ± 3 k cal./mole., and the entropy of activation is shown to lie in the range 2-6 cal./deg./mole. |
en_NZ |
dc.format |
pdf |
en_NZ |
dc.language |
en_NZ |
|
dc.language.iso |
en_NZ |
|
dc.publisher |
Te Herenga Waka—Victoria University of Wellington |
en_NZ |
dc.title |
The kinetics and mechanism of the dehydroxylation of crocidolite |
en_NZ |
dc.type |
Text |
en_NZ |
vuwschema.type.vuw |
Awarded Research Masters Thesis |
en_NZ |
thesis.degree.discipline |
Chemistry |
en_NZ |
thesis.degree.grantor |
Te Herenga Waka—Victoria University of Wellington |
en_NZ |
thesis.degree.level |
Masters |
en_NZ |