Results 211 to 220 of about 342,403 (251)

Scandium Chloride-Catalyzed Chemoselective Thioacetalization of Aldehydes

Synthesis, 2004
A wide variety of acyclic and cyclic dithioacetals can be prepared chemoselectively from the corresponding aldehydes by employing a catalytic amount of scandium chloride in acetonitrile at room temperature.
exaly   +2 more sources

Synthesis, structure, and properties of the infinite-chain compounds scandium chloride carbide, Sc5Cl8C and scandium chloride nitride, Sc5Cl8N

Inorganic Chemistry, 1987
Sc 5 Cl 8 C et Sc 5 Cl 8 N cristallisent dans le groupe d'espace C2/m et leur structure est affinee respectivement jusqu'a R=0,021 et R=0 ...
Douglas S Dudis
exaly   +2 more sources

Stability constants of scandium(III) chloride complexes

Journal of Inorganic and Nuclear Chemistry, 1964
Abstract Stepwise equilibria in aqueous solutions of scandium chloride have been investigated for chloride concentrations up to 0·64 M. Scandium-46 was employed in conjunction with a cation-exchange resin in the H + -form, and the ionic strength was maintained at 0·691 M with perchloric acid.
D F C Morris
exaly   +2 more sources

Effects of scandium chloride on osteogenic and adipogenic differentiation of mesenchymal stem cells

Journal of Rare Earths, 2022
Abstract Mesenchymal stem cells (MSCs) are multi-potent cells that are able to differentiate and mature into various types of cells under a certain microenvironment for cell therapy and tissue regeneration. Scandium (Sc), an important rare earth element, recently has been intensively investigated in biomedical fields as well as industrial engineering,
Xin Yu, Na Ren, Zhichao Feng
exaly   +2 more sources

Removal of impurities from scandium chloride solution using 732-type resin

Journal of Rare Earths, 2018
Abstract The deep removal of Al, Fe(Ⅱ/Ⅲ), Ca, Zr, Ti and Si from scandium chloride solution was carried out by using 732-type strong acid cation exchange resin. The effects of pH value, contact time and complexing agents (EDTA) on the purification process are investigated.
Pan Sun, Guotao Zhou
exaly   +2 more sources

Experimental Study of Leaching Scandium from Chloride Dust

Advanced Materials Research, 2012
Scandium is concentrated in the dust during TiO2 chlorization. The dust can be used as a raw material from which Scandium is extracted. Scandium leaching conditions such as leaching acid concentration , liquid-solid ratio , leaching temperature and leaching time is investigated with chemical analysis through the orthogonal experiment.
exaly   +2 more sources

Experimental Study on Extracting Scandium from HCl Leachate of Chloride Dust

Advanced Materials Research, 2012
Solvent extraction experiment of Sc was investigated.The extraction system consisted of 25% TBP+60% sulfonated kerosene +15% reforming agents. The results show that the extraction rates of Sc can reach up to 95%.The removing of Fe，Mn and Ti can be reached 99.1%, 99.4% and 99.5% respectively.The anti-extraction rates from organic phase with NaOH reach ...
Song Li Liu, Xue Feng Zhang
exaly   +2 more sources

The thermal decomposition of yttrium, scandium, and some rare-earth chloride hydrates

Journal of Inorganic and Nuclear Chemistry, 1957
Abstract The thermal decomposition of yttrium, scandium, lanthanum, cerium, praseodymium, neodymium, samarium and gadolinium chloride hydrates was studied on the thermobalance. The salts began to lose water of hydration in the 55 to 110°C temperature range.
Wesley W Wendlandt
exaly   +2 more sources

Scandium Extraction from Chloride Solutions by a Mixture of Tributyl Phosphate and Molecular Iodine

Theoretical Foundations of Chemical Engineering, 2018
It has been established that the addition of elemental iodine significantly enhances the extraction of scandium by means of tributylphosphate. The metal distribution coefficients exhibit an increase with increasing TBP and iodine concentration in the organic phase as well as with increasing chloride ion concentration in the aqueous phase.
V. I. Kuz’min, A. A. Kuz’mina
exaly   +2 more sources

The dinuclear scandium(III) cyclooctatetraenyl chloride complex di-μ-chlorido-bis[(η⁸-cyclooctatetraene)(tetrahydrofuran-κO)scandium(III)]

Acta Crystallographica Section C Structural Chemistry, 2017
Only a few cyclooctatetraene dianion (COT) π-complexes of lanthanides have been crystallographically characterized. This first single-crystal X-ray diffraction characterization of a scandium(III) COT chloride complex, namely di-μ-chlorido-bis[(η8-cyclooctatetraene)(tetrahydrofuran-κO)scandium(III)], [Sc2(C8H8)2Cl2(C4H8O)2] or [Sc(COT)Cl(THF)]2 (THF is ...
Zheng Zhou, Joshua Greenough, Zheng Wei, Marina A. Petrukhina   +3 more
openaire   +3 more sources