Thermolysis mechanism of samarium nitrate hexahydrate
Publication type: Journal Article
Publication date: 2014-08-28
scimago Q2
wos Q2
SJR: 0.551
CiteScore: 7.7
Impact factor: 3.1
ISSN: 13886150, 15882926, 03684466, 15728943, 14182874
Physical and Theoretical Chemistry
Condensed Matter Physics
Abstract
Thermal decomposition of samarium nitrate hexahydrate Sm(NO3)3·6H2O has been investigated by thermogravimetry, differential scanning calorimetry, infrared spectroscopy, and X-ray diffractometry. This is a complex process that involves slow dehydration and fast concomitant internal hydrolysis. It is markedly different from the processes described for other members of the lanthanide series. At the first stage, pyrolysis is accompanied by removal of water and nitric acid to form samarium pentahydrate Sm(NO3)3·5H2O and intermediate oxonitrates containing O–Sm–OH groups. No traces of SmONO3 were detected. It is assumed that the existence of intermediate structures with six atoms of samarium best fits the experimental results. At higher temperatures, these products undergo further degradation, lose nitrogen dioxide, water, and oxygen, and finally, after having lost lattice water, are transformed into a cubic form of samarium oxide.
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GOST
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Melnikov P. et al. Thermolysis mechanism of samarium nitrate hexahydrate // Journal of Thermal Analysis and Calorimetry. 2014. Vol. 118. No. 3. pp. 1537-1541.
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Melnikov P., Arkhangelsky I. V., Nascimento V. A., Silva A. F., Zanoni Consolo L. Z. Thermolysis mechanism of samarium nitrate hexahydrate // Journal of Thermal Analysis and Calorimetry. 2014. Vol. 118. No. 3. pp. 1537-1541.
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RIS
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TY - JOUR
DO - 10.1007/s10973-014-4067-x
UR - https://doi.org/10.1007/s10973-014-4067-x
TI - Thermolysis mechanism of samarium nitrate hexahydrate
T2 - Journal of Thermal Analysis and Calorimetry
AU - Melnikov, P
AU - Arkhangelsky, I V
AU - Nascimento, V A
AU - Silva, A. F.
AU - Zanoni Consolo, L Z
PY - 2014
DA - 2014/08/28
PB - Springer Nature
SP - 1537-1541
IS - 3
VL - 118
SN - 1388-6150
SN - 1588-2926
SN - 0368-4466
SN - 1572-8943
SN - 1418-2874
ER -
Cite this
BibTex (up to 50 authors)
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@article{2014_Melnikov,
author = {P Melnikov and I V Arkhangelsky and V A Nascimento and A. F. Silva and L Z Zanoni Consolo},
title = {Thermolysis mechanism of samarium nitrate hexahydrate},
journal = {Journal of Thermal Analysis and Calorimetry},
year = {2014},
volume = {118},
publisher = {Springer Nature},
month = {aug},
url = {https://doi.org/10.1007/s10973-014-4067-x},
number = {3},
pages = {1537--1541},
doi = {10.1007/s10973-014-4067-x}
}
Cite this
MLA
Copy
Melnikov, P., et al. “Thermolysis mechanism of samarium nitrate hexahydrate.” Journal of Thermal Analysis and Calorimetry, vol. 118, no. 3, Aug. 2014, pp. 1537-1541. https://doi.org/10.1007/s10973-014-4067-x.