Thermoanalytical behavior of neodymium nitrate hexahydrate Nd(NO3)3•6H2O

被引：5
|
作者：
Melnikov, P. [1 ]
Arkhangelsky, I. V. [2 ]
Nascimento, V. A. [1 ]
de Oliveira, L. C. S. [1 ]
Wandekoken, G. A. [1 ]
de Albuquerque, D. Muniz [1 ]
机构：
[1] Univ Fed Mato Grosso do Sul, Campo Grande, MS, Brazil
[2] Moscow MV Lomonosov State Univ, Moscow, Russia
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2020年 / 139卷 / 06期
关键词：
Neodymium nitrate; Thermal decomposition; Lanthanides; Thermolysis; THERMAL-DECOMPOSITION MECHANISM; INTERMEDIATE PRODUCTS; THERMOLYSIS MECHANISM;
D O I：
10.1007/s10973-019-08748-x
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The hexahydrate Nd(NO3)(3)center dot 6H(2)O melts in its water of crystallization at 328 K. There are no phase transitions at least above 233 K. Similar to other nitrates in the lanthanide series, its thermal decomposition is a gradual process, which entails the formation of a cluster 6[Nd(NO3)(3)center dot 6H(2)O] after the condensation of 6 mol of the initial monomer. During this process, a multicomponent multiphase system exists far from equilibrium and is continuously maintained in this state until normal neodymium oxide is formed. The main volatile products of thermolysis are water, nitric acid, azeotrope 68% HNO3-32% H2O, nitrogen dioxide and oxygen. The proposed mechanism satisfactorily explains the mass losses in accordance with the experimental results.
引用
收藏
页码：3493 / 3497
页数：5
相关论文
共 50 条
  • [41] Densities of the Ternary Systems Y(NO3)3 + La(NO3)3 + H2O, La(NO3)3 + Ce(NO3)3 + H2O, and La(NO3)3 + Nd(NO3)3 + H2O and Their Binary Subsystems at Different Temperatures
    Hu, Yu-Feng
    Jin, Chuan-Wei
    Ling, Shan
    Zhang, Jin-Zhu
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2011, 56 (03): : 472 - 477
  • [42] Morphologies and properties of NiO particles prepared from NiSO4•6H2O and Ni(NO3)2•6H2O by spray pyrolysis
    Kang, DJ
    Kim, KN
    Kim, SG
    JOURNAL OF MATERIALS SCIENCE, 2005, 40 (23) : 6283 - 6289
  • [43] Solubility polytherm for the Mg(NO3)(2)-Nd(NO3)(3)-H2O system
    Bunyakina, NV
    Storozhenko, DA
    Shevchuk, VG
    Dryuchko, AG
    ZHURNAL NEORGANICHESKOI KHIMII, 1996, 41 (09): : 1577 - 1579
  • [44] Morphologies and properties of NiO particles prepared from NiSO4·6H2O and Ni(NO3)2·6H2O by spray pyrolysis
    Dong-Jun Kang
    Kyung-Nam Kim
    Sun-Geon Kim
    Journal of Materials Science, 2005, 40 : 6283 - 6289
  • [45] STRUCTURE OF SODIUM TRIMETAPHOSPHATE-TELLURATE HEXAHYDRATE - TE(OH)6 2NA3P3O9 6H2O
    BOUDJADA, N
    AVERBUCHPOUCHOT, MT
    DURIF, A
    ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1981, 37 (MAR): : 645 - 647
  • [46] Hexagonal aqueous nanotubes in hexahydrate [18-crown-6] • [CH3NH3F]-6H2O
    Udachin, KA
    Lipkowski, Y
    JOURNAL OF STRUCTURAL CHEMISTRY, 2002, 43 (04) : 705 - 709
  • [47] CRYSTAL STRUCTURE AND OPTICAL PROPERTIES OF EUROPIUM CHLORIDE HEXAHYDRATE EUCL3 6H2O
    BELSKII, NK
    STRUCHKO.YT
    SOVIET PHYSICS CRYSTALLOGRAPHY, USSR, 1965, 10 (01): : 15 - +
  • [48] Y(NO3)3-HNO3-H2O, Y(NO3)3-AL(NO3)3-H2O AND ND(NO3)3-AL(NO3)3-H2O SYSTEMS AT 25-DEGREES-C
    KUZNETSOVA, GP
    YAKIMOVA, ZP
    YASTREBOVA, LF
    STEPIN, BD
    ZHURNAL NEORGANICHESKOI KHIMII, 1981, 26 (11): : 3161 - 3164
  • [49] Effect of the humidity on the uptake of NO3 on coatings composed of MgCl2 · 6H2O and MgBr2 · 6H2O and mixtures thereof with NaCl
    V. V. Zelenov
    E. V. Aparina
    A. V. Chudinov
    S. A. Kashtanov
    Russian Journal of Physical Chemistry B, 2010, 4 : 399 - 407
  • [50] Effect of the humidity on the uptake of NO3 on coatings composed of MgCl2 • 6H2O and MgBr2 • 6H2O and mixtures thereof with NaCl
    Zelenov, V. V.
    Aparina, E. V.
    Chudinov, A. V.
    Kashtanov, S. A.
    RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B, 2010, 4 (03) : 399 - 407
12345