نتایج جستجو برای: alkaline earth metals

تعداد نتایج: 193458  

Journal: :Journal of Industrial & Engineering Chemistry 1915

Journal: :international journal of aquatic biology 0
anusaya mallick university of kalyani bikash chandra mohapatra central institute of freshwater aquaculture, (indian council of agricultural research), bhubaneswar- 751 002, orissa, india. niranjan sarangi central institute of freshwater aquaculture, (indian council of agricultural research), bhubaneswar- 751 002, orissa, india.

the acute toxicity of salts of alkali and alkaline earth metals, such as sodium (na), potassium (k), calcium (ca) and magnesium (mg) were studied on the egg and larval stages of indian major carp labeo rohita (hamilton). the acute toxicity experiments were conducted followed by the range finding bioassay tests. the experiments were conducted in triplicates. the cumulative percentage of dead or ...

2015
Luisa Moreno

THE MINING REPORT Luisa Moreno, managing partner and analyst with Toronto-based Tahuti Global, says there are many things investors must pay attention to when it comes to critical metals projects, but nothing should trump metallurgy. That's because no two deposits are precisely the same, and having a clear understanding of how to economically recover those metals and get them into end-users' ha...

Journal: :Physical review letters 2010
Alexey A Kovalev Jairo Sinova Yaroslav Tserkovnyak

We present a microscopic theory of the anomalous Hall effect (AHE) in metallic multiband ferromagnets, which accounts for all scattering-independent contributions, i.e., both the intrinsic and the so-called side jump. For a model of Gaussian disorder, the AHE is expressed solely in terms of the material's electronic band structure. Our theory handles systematically the interband-scattering cohe...

طائب, عباس, علوی نائینی, احمد,

Up to date 12 complexes of triethanolamine with alkali, alkaline earth, lanthanide metals and hydrogen have been reponed. The synthesis and structure determination of these compounds is the subject of this review papacr. Moreover, the similarities and the differences of the complexes with respect to the metals and ligand are discussed.

Journal: :The journal of physical chemistry. A 2006
Dustin S Ho Nathan J DeYonker Angela K Wilson Thomas R Cundari

Computing the enthalpies of formation for alkali metal and alkaline earth metal oxides (M(x)O) and hydroxides [M(OH)(n)] using the Gaussian-n (Gn) and Weismann-n (Wn) ab initio model chemistries is difficult due to an improper treatment of core-valence electron correlation effects. Using a new model chemistry called the correlation consistent Composite Approach (ccCA), enthalpies of formation w...

Journal: :ACS Sustainable Chemistry & Engineering 2022

Alkaline-earth-metal ions accelerate the breaking of cellulose bonds and control distribution products in pyrolysis lignocellulose to biofuels chemicals. Here, activation via magnesium was measured over a range temperatures from 370 430 °C for 20–2000 ms compared with calcium, another naturally occurring alkaline earth metal materials. The experimental approach pulse-heated analysis solid/surfa...

2009
Kazuharu YOSHIZUKA

The separation and recovery of rare earth metals from fluorescence material waste was investigated by using solvent extraction with 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester in kerosene. Extraction equilibrium expressions were established for the trivalent metals (La, Ce, Eu, Tb, Y and Al) and divalent metals (Ca, Sr and Ba) for both single and multi components systems. The process s...

Journal: :Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan 1978

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