MARC details
| 000 -LEADER |
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| fixed length control field |
02172nam a2200253Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625160144.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-16063 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Behaviour of rare earth sesquioxides exposed to atmospheric carbon dioxide and water |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Reactivity of Solids, 4(1-2,), p.23-40, 1987 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
The behaviour of the rare earth sesquioxides, when exposed to atmospheric water and carbon dioxide under ordinary conditions of temperature and pressure, is reviewed. Data corresponding to eleven samples from seven different oxides systematically investigated by X-ray diffraction (XRD), IR spectroscopy, thermogravimetry (TG)and temperature-programmed decomposition (TPD), are reported. The BET surface areas of all these samples are also given. In accordance with the results summarized, upon exposure to air, the lanthanide sesquioxides all become hydrated and carbonated in bulk. However, the rate and intensity of these processes, as well as the nature of the resulting phases, are not the same for the whole group of oxides. Furthermore, the characterization carried out on the oxides aged in air suggests that throughout the lanthanide series at least three types of behaviour can be distinguished. In some cases, the behaviour has been found to depend on the origin of the samples, which prevents the generalization of definite sequences of reactivity for the whole series of oxides. Also, the use of a single technique, particularly XRD, does not allow one to establish the nature of the aged phases, or even to determine whether or not alterations in the bulk of the starting oxides have occurred. © 1987. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
ENVIRONMENTAL TESTING |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
OXIDES - CHEMICAL REACTIONS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
SPECTROSCOPY, INFRARED |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
THERMOANALYSIS |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Bernal, S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Botana, F.J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
García, R. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Rodríguez-Izquierdo, J.M. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1pzYgcMM_iV-4hIr6rBjogwLbw33uC3iz/view?usp=drivesdk">https://drive.google.com/file/d/1pzYgcMM_iV-4hIr6rBjogwLbw33uC3iz/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
