Preparation of Rare-Earth Chlorides
نویسندگان
چکیده
منابع مشابه
Preparation of rare earth metals
The production of over 400 grams of pure gadolinium metal by reduction of the anhydrous chloride by calcium in tantalum vessels is described; yields were over 97%. The use of the same techniques in an attempt to prepare yttrium metal were partially successful.
متن کاملSome physical properties of rare-earth chlorides in aqueous solution
The aqueous solution behavior of some rare-earth chlorides has been investigated at 25° C. in the concentration range between 0.02 molal and saturation. Density measurements on solutions of lanthanum, neodymium, samarium, gadolinium, dysprosium, erbium, and ytterbium chlorides were carried out by a pycnometric method with an estimated accuracy of 1 x 10-5 gm.per ml. From the density data the ap...
متن کاملPreparation and Characterization of Rare Earth Doped Fluoride Nanoparticles
This paper reviews the synthesis, structure and applications of metal fluoride nanoparticles, with particular focus on rare earth (RE) doped fluoride nanoparticles obtained by our research group. Nanoparticles were produced by precipitation methods using the ligand ammonium di-n-octadecyldithiophosphate (ADDP) that allows the growth of shells around a core particle while simultaneously avoiding...
متن کاملA facile preparation of imidazolinium chlorides.
A process for the preparation of symmetric and unsymmetric imidazolinium chlorides that involves reaction of a formamidine with dichloroethane and a base (a) is described. This method makes it possible to obtain numerous imidazolinium chlorides under solvent-free reaction conditions and in excellent yields with purification by simple filtration. Alternatively, symmetric imidazolinium chlorides ...
متن کاملThe interaction of rare earth chlorides with 4,4'-bipyridine for the reversible formation of template based luminescent Ln-N-MOFs.
By solvent free syntheses of the rare earth trichlorides LnCl(3), Ln = Pr, Nd, Sm, Eu, Tb with melts of 4,4'-bipyridine two-dimensional frameworks of the formula (2)(infinity)[Ln(2)Cl(6)(4,4'-bipy)(3)] x 2(4,4'-bipy) are obtained, with 4,4'-bipy = C(10)H(8)N(2), 4,4'-bipyridine. 4,4'-Bipyridine acts both as a linker ligand as well as a template and populates all cavities in the structures. The ...
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ژورنال
عنوان ژورنال: Nature
سال: 1948
ISSN: 0028-0836,1476-4687
DOI: 10.1038/161241a0