Studies on lanthanoid sulphites: V. thermal decomposition of cerium and neodymium sulphites
The preparation and thermal behaviour of Ce 2(SO 3) 3· 3H 2O, Nd 2(SO 3) 3·6H 2O and Nd 2(SO 3) 3 have been studied. Cerium sulphite undergoes first dehydration which is followed by decomposition to CeO 2 in the temperature range 500 – 850 °C. The decomposition involves two intermediate phases both...
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| Veröffentlicht in: | Thermochimica acta 1985, Vol.95 (2), p.407-412 |
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| container_title | Thermochimica acta |
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| creator | Leskelä, M. De Matos, J.E.X. Niinistö, L. |
| description | The preparation and thermal behaviour of Ce
2(SO
3)
3· 3H
2O, Nd
2(SO
3)
3·6H
2O and Nd
2(SO
3)
3 have been studied. Cerium sulphite undergoes first dehydration which is followed by decomposition to CeO
2 in the temperature range 500 – 850 °C. The decomposition involves two intermediate phases both in air and nitrogen. According to the TG curves the phases in air are Ce
2(SO
3)
2SO
4 and Ce
2SO
3(SO
4)
2. In nitrogen, Ce
2O
2SO
4 was identified and this provides a synthetic route to cerium oxysulphate.
Neodymium sulphite decomposes to Nd
2O
2SO
4 when heated in air or in nitrogen up to 950°C. The intermediate levels observed do not correspond to single phases, and the reaction mechanism depends strongly on the experimental conditions. |
| doi_str_mv | 10.1016/0040-6031(85)85303-X |
| format | Article |
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2(SO
3)
3· 3H
2O, Nd
2(SO
3)
3·6H
2O and Nd
2(SO
3)
3 have been studied. Cerium sulphite undergoes first dehydration which is followed by decomposition to CeO
2 in the temperature range 500 – 850 °C. The decomposition involves two intermediate phases both in air and nitrogen. According to the TG curves the phases in air are Ce
2(SO
3)
2SO
4 and Ce
2SO
3(SO
4)
2. In nitrogen, Ce
2O
2SO
4 was identified and this provides a synthetic route to cerium oxysulphate.
Neodymium sulphite decomposes to Nd
2O
2SO
4 when heated in air or in nitrogen up to 950°C. The intermediate levels observed do not correspond to single phases, and the reaction mechanism depends strongly on the experimental conditions.</description><identifier>ISSN: 0040-6031</identifier><identifier>EISSN: 1872-762X</identifier><identifier>DOI: 10.1016/0040-6031(85)85303-X</identifier><identifier>CODEN: THACAS</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Chemistry ; Exact sciences and technology ; Inorganic chemistry and origins of life ; Kinetics and mechanism of reactions</subject><ispartof>Thermochimica acta, 1985, Vol.95 (2), p.407-412</ispartof><rights>1985</rights><rights>1986 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/004060318585303X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,4010,27900,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=8474786$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Leskelä, M.</creatorcontrib><creatorcontrib>De Matos, J.E.X.</creatorcontrib><creatorcontrib>Niinistö, L.</creatorcontrib><title>Studies on lanthanoid sulphites: V. thermal decomposition of cerium and neodymium sulphites</title><title>Thermochimica acta</title><description>The preparation and thermal behaviour of Ce
2(SO
3)
3· 3H
2O, Nd
2(SO
3)
3·6H
2O and Nd
2(SO
3)
3 have been studied. Cerium sulphite undergoes first dehydration which is followed by decomposition to CeO
2 in the temperature range 500 – 850 °C. The decomposition involves two intermediate phases both in air and nitrogen. According to the TG curves the phases in air are Ce
2(SO
3)
2SO
4 and Ce
2SO
3(SO
4)
2. In nitrogen, Ce
2O
2SO
4 was identified and this provides a synthetic route to cerium oxysulphate.
Neodymium sulphite decomposes to Nd
2O
2SO
4 when heated in air or in nitrogen up to 950°C. The intermediate levels observed do not correspond to single phases, and the reaction mechanism depends strongly on the experimental conditions.</description><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>Inorganic chemistry and origins of life</subject><subject>Kinetics and mechanism of reactions</subject><issn>0040-6031</issn><issn>1872-762X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1985</creationdate><recordtype>article</recordtype><recordid>eNo9kE1LxDAQhoMouK7-Aw85eNBD10nTNKkHQRa_YMGDiyx4CGkyZSP9IukK--9tVfYyw8AzLy8PIZcMFgxYfguQQZIDZ9dK3CjBgSebIzJjSqaJzNPNMZkdkFNyFuMXALBUwYx8vg875zHSrqW1aYetaTvvaNzV_dYPGO_ox4IOWwyNqalD2zV9F_3gR7yrqMXgdw01raMtdm7fTNfh95ycVKaOePG_52T99LheviSrt-fX5cMqQZXlCUrlsqJiqSxZKRwrhIASLWNFXhorLc9Sl7q8Alk4a61hCkohC4vjFMJxPidXf7G9idbUVTCt9VH3wTcm7LXKZCZVPmL3fxiOVb49Bh2tx9ai8wHtoF3nNQM9CdWTLT3Z0kroX6F6w38A9ZVrKg</recordid><startdate>1985</startdate><enddate>1985</enddate><creator>Leskelä, M.</creator><creator>De Matos, J.E.X.</creator><creator>Niinistö, L.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope></search><sort><creationdate>1985</creationdate><title>Studies on lanthanoid sulphites: V. thermal decomposition of cerium and neodymium sulphites</title><author>Leskelä, M. ; De Matos, J.E.X. ; Niinistö, L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e846-e78d49f127b1b5d19550bec1196bac7c342d2d6f079dccca180b579ceb5755d33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1985</creationdate><topic>Chemistry</topic><topic>Exact sciences and technology</topic><topic>Inorganic chemistry and origins of life</topic><topic>Kinetics and mechanism of reactions</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Leskelä, M.</creatorcontrib><creatorcontrib>De Matos, J.E.X.</creatorcontrib><creatorcontrib>Niinistö, L.</creatorcontrib><collection>Pascal-Francis</collection><jtitle>Thermochimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Leskelä, M.</au><au>De Matos, J.E.X.</au><au>Niinistö, L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Studies on lanthanoid sulphites: V. thermal decomposition of cerium and neodymium sulphites</atitle><jtitle>Thermochimica acta</jtitle><date>1985</date><risdate>1985</risdate><volume>95</volume><issue>2</issue><spage>407</spage><epage>412</epage><pages>407-412</pages><issn>0040-6031</issn><eissn>1872-762X</eissn><coden>THACAS</coden><abstract>The preparation and thermal behaviour of Ce
2(SO
3)
3· 3H
2O, Nd
2(SO
3)
3·6H
2O and Nd
2(SO
3)
3 have been studied. Cerium sulphite undergoes first dehydration which is followed by decomposition to CeO
2 in the temperature range 500 – 850 °C. The decomposition involves two intermediate phases both in air and nitrogen. According to the TG curves the phases in air are Ce
2(SO
3)
2SO
4 and Ce
2SO
3(SO
4)
2. In nitrogen, Ce
2O
2SO
4 was identified and this provides a synthetic route to cerium oxysulphate.
Neodymium sulphite decomposes to Nd
2O
2SO
4 when heated in air or in nitrogen up to 950°C. The intermediate levels observed do not correspond to single phases, and the reaction mechanism depends strongly on the experimental conditions.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/0040-6031(85)85303-X</doi><tpages>6</tpages></addata></record> |
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| ispartof | Thermochimica acta, 1985, Vol.95 (2), p.407-412 |
| issn | 0040-6031 1872-762X |
| language | eng |
| recordid | cdi_pascalfrancis_primary_8474786 |
| source | Elsevier ScienceDirect Journals |
| subjects | Chemistry Exact sciences and technology Inorganic chemistry and origins of life Kinetics and mechanism of reactions |
| title | Studies on lanthanoid sulphites: V. thermal decomposition of cerium and neodymium sulphites |
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