Results 181 to 190 of about 306,686 (232)

ChemInform Abstract: SELECTIVE NITRATION OF PHENOLS CATALYZED BY LANTHANUM(III) NITRATE

Chemischer Informationsdienst, 1983
AbstractUnter der katalytischen Wirkung von La(III)‐nitrat ist eine Mono‐nitrierung von Phenolen durch NaNO3 in guten Ausbeuten bei milden Bedingungen möglich.
M. OUERTANI, P. GIRARD, H. B. KAGAN
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Polarography of hydrogen peroxide in lanthanum nitrate solutions

Journal of Electroanalytical Chemistry (1959), 1964
The reduction of hydrogen peroxide at the D.M.E. is catalyzed in lanthanum, salt solutions. In. 0.01 M La(NO3)3 it has been shown that a cathodic hydrogen peroxide current appears at +0.2 V vs. S.C.E., followed by a depression in the current which extends to the main hydrogen peroxide wave at −0.3 V. Experiments on suspensions of lanthanum hydroxide in
Mary T. Henne, Justin W. Collat
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Anomalous ultrasonic absorption in copper lanthanum nitrate

The Journal of Chemical Physics, 1976
Ultrasonic wave absorption and velocity data seem to indicate the existence of some type of phase transition in single crystal salts of copper lanthanum nitrate in the neighborhood of 240°K. The nature of the phase transition observed at 240°K could not be explained by this experiment.
R. P. Hentz, S. S. Yun
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Structure and thermal behaviour of lanthanum aluminium nitrates

Journal of Alloys and Compounds, 1998
The structure of the new phase LaAl(NO 3 ) 6 .12H 2 O has been determined from single-crystal diffraction data. The symmetry is trigonal [a=10.948(1) A, c=16.802(2) A, S.G. R 3] and the structure consists of discrete lanthanum and aluminium polyhedra. La atoms are surrounded by six bidentate nitrate groups in the form of an icosahedron and Al atoms are
Anne-Elisabeth Gobichon, Jean-Paul Auffrédic, Daniel Louër   +2 more
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Lanthanum Lead Oxide Hydroxide Nitrates with a Nonlinear Optical Effect

Inorganic Chemistry, 2014
Two new lanthanum lead oxide hydroxide nitrates with acentric structure, [LaPb8O(OH)10(H2O)](NO3)7 (1) and [LaPb8O(OH)10(H2O)](NO3)7·2H2O (2), have been prepared under subcritical hydrothermal conditions and crystallize in the space groups of Cc and P2(1)2(1)2(1), respectively. The crystal structure of compound 1 consists of the novel [LaPb8O(OH)10(H2O)
Genxiang, Wang, Min, Luo, Chensheng, Lin, Ning, Ye, Yuqiao, Zhou, Wendan, Cheng   +5 more
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Phase relations in the lanthanum nitrate (copper nitrate)-poly(vinylpyrrolidone)-water systems

Russian Journal of Inorganic Chemistry, 2007
Room-temperature isothermal sections of the phase diagrams of lanthanum nitrate-poly(vinylpyrrolidone)-water and copper nitrate-poly(vinylpyrrolidone)-water systems were studied. The following features were found: a wide region of homogeneous water-polymer solutions, liquid-liquid phase separation field, and a three-phase region in which two liquids ...
A. A. Ostroushko, M. Yu. Sennikov
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Lanthanum nitrate demonstrated no genotoxicity in the conducted tests

Regulatory Toxicology and Pharmacology
Given the widespread applications in industrial and agricultural production, the health effects of rare earth elements (REEs) have garnered public attention, and the genotoxicity of REEs remains unclear. In this study, we evaluated the genetic effects of lanthanum nitrate, a typical representative of REEs, with guideline-compliant in vivo and in vitro ...
Li Juntao, Li Wenxue, Yang Guangyu, Li Xudong, Zhuang Runxuan, Zhang Bo, Zhu Wei   +6 more
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The structure of the complex formed by tetrahethylamalondiamide and lanthanum(III) nitrate

Polyhedron, 1994
Abstract The structure of the complex LaL2(NO3)3 [L = (C2H5)2NCOCH2CON(C2H5)2] has been investigated. It has been shown that the lanthanum is 10 coordinate with two bidentate L ligands and three bidentate nitrate groups.
Paul Byers, Michael G.B. Drew, Michael J. Hudson, Neil S. Isaacs, Charles Madic   +4 more
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Influence of Pretreatment on Lanthanum Nitrate, Carbonate, and Oxide Powders

Chemistry of Materials, 1996
Structural modifications during thermal pretreatment of La(NO{sub 3}){sub 3}, La{sub 2}(CO{sub 3}){sub 3}, and La{sub 2}O{sub 3} is reported. Diffuse reflectance, FTIR, X-ray diffraction, and BET surface area measurements were used in the characterizations.
B. Klingenberg, M. Albert Vannice
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A Two-Generation Reproductive Toxicity Study of Lanthanum Nitrate in SD Rats

Biological Trace Element Research, 2021
In order to evaluate the effects of lanthanum nitrate on the development of the parent, offspring, and the third generation of Sprague-Dawley (SD) rats, a two-generation reproductive toxicity experiment, was conducted. Two hundred and forty specific pathogen-free (SPF) healthy SD rats were randomly divided into the control group, low-, medium-, and ...
Lang Yan, Fangyuan Gao, Wenjing Shi, Bijiang Geng, Jiqianzhu Zhang, Jingjing Mao, Yijun Tian, Lijun Ren, Xiaoyu Dai, Jikuai Chen, Jiangbo Zhu, Xiaofang Zhang   +11 more
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