《Liquid-liquid extraction of Eu(lll) using synergic mixture of 1-phenyl-3-methyl-4-trifluoroacetyl-2-pyrazolin-5-one and crown ethers》 was written by Ghani, Lubna; Shahida, Shabnam; Ali, Akbar; Khan, Muhammad Haleem; Aziz, Bushra; Masood, M.; Badshah, Syed Lal; Khan, Mumtaz. Computed Properties of C10H20O5 And the article was included in SN Applied Sciences in 2020. The article conveys some information:
Synergic extraction of Eu(III) as representative of rare earth elements was conducted with 0.01 mol dm-3 of trifluoroacetyl-pyrazolin-5-one (HPMTFP) and then with synergic mixture of HPMTFP and crown ethers (benzo-15-crown-5, 18-crown-6, 15-crown-5) in dichloromethane (DCM) from aqueous solution having pH 1.0-3.5. Slope anal. method was used for determining the composition of the synergic adduct i.e. Eu(PMTFP)3 that came out to be Eu(PMTFP)3·2S, where S = neutral oxo-donor and -PMTFP = conjugate base of HPMTFP mol. Selective extraction of Eu(III) was found in the presence of various masking agents like citrate, oxalate, bromide, thiosulfate, chromate ions and of some cations. The accuracy of the developed procedure was checked by analyzing real lake sample (IAEA-SL-3) as a reference material. The results came from multiple reactions, including the reaction of 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Computed Properties of C10H20O5)
1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Computed Properties of C10H20O5
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem