- Tytuł:
- N-(diethylthiophosphoryl)-aza[18]crown-6: synthesis and ability of solvent extraction toward lead(II), zinc(II) and cadmium(II) metal cations
- Autorzy:
-
Kozlowska, J.
Miroshnichenko, S. - Powiązania:
- https://bibliotekanauki.pl/articles/346955.pdf
- Data publikacji:
- 2013
- Wydawca:
- Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydział Technologii i Inżynierii Chemicznej
- Tematy:
-
crown ethers
solvent extraction
lead(II)
zinc(II)
cadmium(II) - Opis:
- This work presents the synthesis of a strongly hydrophobic, functionalized monaza crown ether, i.e., lariat ether, namely N-(diethylthiophosphoryl)-aza[18]crown-6 and its application as ion extractant in solvent extraction systems. The synthesis of thiophosphorylated aza[18]crown-6 was performed with good yield. Separation systems have been successfully developed to extract Pb(II), Cd(II) and Zn(II) into organic phase, i.e., chloroform with the crown ethers: aza[18]crown-6 and N-(diethylthiophosphoryl)-aza[18] crown-6 as extractants. The selectivity order in both crown ethers was Pb(II) >> Cd(II) > Zn(II). The obtained results suggest that N-(diethylthiophosphoryl)-aza[18]crown-6 can be used for the selective removal of Pb(II) at lower pH values than aza[18]crown-6.
- Źródło:
-
Ars Separatoria Acta; 2012-2013, 9/10; 7-14
1731-6340 - Pojawia się w:
- Ars Separatoria Acta
- Dostawca treści:
- Biblioteka Nauki
Artykuł