Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry.
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | https://doi.org/10.1016/j.saa.2013.04.111 http://www.repositorio.ufop.br/handle/123456789/4196 |
Resumo: | The mineral amarantite Fe3þ 2 (SO4)O _ 7H2O has been studied using a combination of techniques including thermogravimetry, electron probe analyses and vibrational spectroscopy. Thermal analysis shows decomposition steps at 77.63, 192.2, 550 and 641.4 _C. The Raman spectrum of amarantite is dominated by an intense band at 1017 cm_1 assigned to the SO2_ 4 m1 symmetric stretching mode. Raman bands at 1039, 1054, 1098, 1131, 1195 and 1233 cm_1 are attributed to the SO2_ 4 m3 antisymmetric stretching modes. Very intense Raman band is observed at 409 cm_1 with shoulder bands at 399, 451 and 491 cm_1 are assigned to the m2 bending modes. A series of low intensity Raman bands are found at 543, 602, 622 and 650 cm_1 are assigned to the m4 bending modes. A very sharp Raman band at 3529 cm_1 is assigned to the stretching vibration of OH units. A series of Raman bands observed at 3025, 3089, 3227, 3340, 3401 and 3480 cm_1 are assigned to water bands. Vibrational spectroscopy enables aspects of the molecular structure of the mineral amarantite to be ascertained. |
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Frost, Ray LeslieLópez, AndrésCipriano, Ricardo Augusto ScholzXi, YunfeiSilveira, Aléssio Jordan daLima, Rosa Malena Fernandes2014-12-17T13:32:27Z2014-12-17T13:32:27Z2013FROST, R. L. et al. Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142513004605>. Acesso em: 07 out. 2014.https://doi.org/10.1016/j.saa.2013.04.1111386-1425http://www.repositorio.ufop.br/handle/123456789/4196The mineral amarantite Fe3þ 2 (SO4)O _ 7H2O has been studied using a combination of techniques including thermogravimetry, electron probe analyses and vibrational spectroscopy. Thermal analysis shows decomposition steps at 77.63, 192.2, 550 and 641.4 _C. The Raman spectrum of amarantite is dominated by an intense band at 1017 cm_1 assigned to the SO2_ 4 m1 symmetric stretching mode. Raman bands at 1039, 1054, 1098, 1131, 1195 and 1233 cm_1 are attributed to the SO2_ 4 m3 antisymmetric stretching modes. Very intense Raman band is observed at 409 cm_1 with shoulder bands at 399, 451 and 491 cm_1 are assigned to the m2 bending modes. A series of low intensity Raman bands are found at 543, 602, 622 and 650 cm_1 are assigned to the m4 bending modes. A very sharp Raman band at 3529 cm_1 is assigned to the stretching vibration of OH units. A series of Raman bands observed at 3025, 3089, 3227, 3340, 3401 and 3480 cm_1 are assigned to water bands. Vibrational spectroscopy enables aspects of the molecular structure of the mineral amarantite to be ascertained.Raman spectroscopyAmarantiteInfrared spectroscopySulphateEvaporiteCharacterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleO periódico Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença 3487300298651.info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-82636http://www.repositorio.ufop.br/bitstream/123456789/4196/2/license.txtc2ffdd99e58acf69202dff00d361f23aMD52ORIGINALARTIGO_CharacterizationSulphateAmarantite.pdfARTIGO_CharacterizationSulphateAmarantite.pdfapplication/pdf1061994http://www.repositorio.ufop.br/bitstream/123456789/4196/1/ARTIGO_CharacterizationSulphateAmarantite.pdf9b976eecd714c5174ac3d232d3946e37MD51123456789/41962019-07-09 09:09:34.842oai:localhost:123456789/4196Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-07-09T13:09:34Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. |
title |
Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. |
spellingShingle |
Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. Frost, Ray Leslie Raman spectroscopy Amarantite Infrared spectroscopy Sulphate Evaporite |
title_short |
Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. |
title_full |
Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. |
title_fullStr |
Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. |
title_full_unstemmed |
Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. |
title_sort |
Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. |
author |
Frost, Ray Leslie |
author_facet |
Frost, Ray Leslie López, Andrés Cipriano, Ricardo Augusto Scholz Xi, Yunfei Silveira, Aléssio Jordan da Lima, Rosa Malena Fernandes |
author_role |
author |
author2 |
López, Andrés Cipriano, Ricardo Augusto Scholz Xi, Yunfei Silveira, Aléssio Jordan da Lima, Rosa Malena Fernandes |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Frost, Ray Leslie López, Andrés Cipriano, Ricardo Augusto Scholz Xi, Yunfei Silveira, Aléssio Jordan da Lima, Rosa Malena Fernandes |
dc.subject.por.fl_str_mv |
Raman spectroscopy Amarantite Infrared spectroscopy Sulphate Evaporite |
topic |
Raman spectroscopy Amarantite Infrared spectroscopy Sulphate Evaporite |
description |
The mineral amarantite Fe3þ 2 (SO4)O _ 7H2O has been studied using a combination of techniques including thermogravimetry, electron probe analyses and vibrational spectroscopy. Thermal analysis shows decomposition steps at 77.63, 192.2, 550 and 641.4 _C. The Raman spectrum of amarantite is dominated by an intense band at 1017 cm_1 assigned to the SO2_ 4 m1 symmetric stretching mode. Raman bands at 1039, 1054, 1098, 1131, 1195 and 1233 cm_1 are attributed to the SO2_ 4 m3 antisymmetric stretching modes. Very intense Raman band is observed at 409 cm_1 with shoulder bands at 399, 451 and 491 cm_1 are assigned to the m2 bending modes. A series of low intensity Raman bands are found at 543, 602, 622 and 650 cm_1 are assigned to the m4 bending modes. A very sharp Raman band at 3529 cm_1 is assigned to the stretching vibration of OH units. A series of Raman bands observed at 3025, 3089, 3227, 3340, 3401 and 3480 cm_1 are assigned to water bands. Vibrational spectroscopy enables aspects of the molecular structure of the mineral amarantite to be ascertained. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013 |
dc.date.accessioned.fl_str_mv |
2014-12-17T13:32:27Z |
dc.date.available.fl_str_mv |
2014-12-17T13:32:27Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
FROST, R. L. et al. Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142513004605>. Acesso em: 07 out. 2014. https://doi.org/10.1016/j.saa.2013.04.111 |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/4196 |
dc.identifier.issn.none.fl_str_mv |
1386-1425 |
identifier_str_mv |
FROST, R. L. et al. Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142513004605>. Acesso em: 07 out. 2014. 1386-1425 |
url |
https://doi.org/10.1016/j.saa.2013.04.111 http://www.repositorio.ufop.br/handle/123456789/4196 |
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eng |
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eng |
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