RE acetylacetone Synthesis and Characterization
Material thermal analysis data: Table 5 Thermal analysis of the data * in brackets the theoretical value of the thermal analysis of rare earth complexes curve similar to each other, indicating the complex structure of the same. Thermal analysis of this complex is divided into two main processes: dehydration and decomposition process. From room temperature to 180 ℃ for the dehydration of the complex process of mapping from the thermal analysis we can see, the complex began in the 70 ~ C in the vicinity of weightlessness, when the temperature rises to 18O ℃, the dehydration is almost entirely. Calculate the rate of dehydration of crystal water complexes in the percentage match. From about 200 ℃ to 600 ℃ range of complex decomposition process. In the thermal analysis patterns, we can see from 2oo ~ c to 4oo'c, slow curve, the complex is relatively stable, to 5oo ~ c so significant decomposition of the complex began, when the temperature tends to 800 ℃,
######## oakley sunglasses, is completely decomposed into the corresponding rare earth oxides (Ln: 0.). 4 Conclusion We have through the five rare earth elements (Pr, Nd, Gd, Ho, Er) rare earth oxides prepared acetylacetone complexes. By elemental analysis,
Beats By Dre Studio, IR and thermal analysis to characterize them. Determine the synthesis of complex chemical composition of Ln (acac). · 3H: O. References 1 Ruo-Jie Tao, Yong Lou the possession of wealth and so on. Bridged rare earth-transition metal complexes of different quad-core magnetic and electrochemical studies. Chinese Rare Earth Society, 2003.21 (2): 1O5-1O8.2 Liu Dewen, Po Chun-yun. Rare Earth, complex organic ligand ternary mixture Synthesis and luminescence properties. China Lighting. 1998.7:5291.3 Kung, Chen Pei-heng and so on. Course dehydration of lanthanum chloride heptahydrate from decompression and thermal effects. Chinese Rare Earth Society, 1985.3 (6) :13-15.4 Liu hair. Acetyl acetone 5,10,15,2 O one hundred forty-one (4-chlorophenyl) porphyrin complexes of rare earth preparation and properties. Chemical Journal, 1985,6 (7) :569-572.5 Chemical Society of Japan ed. An Jiaju, Chen JII translation. Synthetic Inorganic Chemistry Handbook (Volume II). Beijing, Chemical Industry Press, 1981.6Pope, G. W. Steinbach. J. FandWagner,
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