The extraction of thorium from aqueous solution was studied using the organic extractant trioctyl phosphine oxide (TOPO) dissolved in cyclohexane. The parameters affecting the extraction, determination and stripping of Th (IV) included type of extractant, shaking time, extractant concentration, pH, aqueous to organic phase ratio (A/O), temperature, certain interfering ions and stripping agents....

Three thorium(iv)-based metal-organic hybrid compounds with 2D layered and 3D framework structures exhibiting graphene-like (6,3) sheet topologies were prepared with linkers with threefold symmetry. These compounds contain rare and relatively anisotropic coordination environments for low-valent actinides that are similar to those often observed for high-valent actinide ions.

The present paper concerns on the selective and very efficient transport of thorium(IV) ions from aqueous solutions through an emulsion liquid membranes composed by paraffin and a surfactant, without carrier requirement. The influence of pH of the external aqueous phase, the surfactant concentration in the membrane phase, the type, and concentration of th...

The coordination chemistry of actinide(IV) ions with hydroxypyridinone ligands has been initially explored by examining the complexation of Th(IV) ion with bidentate PR-1,2-HOPO (HL1), PR-Me-3,2-HOPO (HL2), and PR-3,4-HOPO-N (HL3) ligands. The complexes Th(L)4, Th(L)4, and Th(L)4 were prepared in methanol solution from Th(acac)4 and the corresponding ligand. Single-crystal X-ray diffraction ana...

The first examples of actinide complexes incorporating corrole ligands are presented. Thorium(IV) and uranium(IV) macrocycles of Mes2(p-OMePh)corrole were synthesized via salt metathesis with the corresponding lithium corrole in remarkably high yields (93% and 83%, respectively). Characterization by single-crystal X-ray diffraction revealed both complexes to be dimeric, having two metal centers...

the present paper concerns on the selective and very efficient transport of thorium(iv) ions from aqueous solutions through an emulsion liquid membranes composed by paraffin and a surfactant, without carrier requirement. the influence of ph of the external aqueous phase, the surfactant concentration in the membrane phase, the type, and concentration of the acid used in the receiving phase, the ...

Energi Nuklir merupakan salah satu energi alternatif yang memiliki kelebihan pada jumlah dihasilkannya, bahan bakar digunakannya dan tidak menghasilkan pencemaran udara. Gas-Cooled fast Reactor reaktor cepat berpendingin helium termasuk dalam Generasi IV keunggulan segi penggunaan keselamatan. Thorium nuklir bersifat fertile jumlahnya melimpah, yaitu empat kali lebih banyak dibandingkan dengan ...