Specific sorption of cadmium (II) and lead (II) chloride complexes on crown ether resin.
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چکیده
منابع مشابه
Sorption of Lead (II) Ions on Activated Coconut Husk
Background: In recent years, various toxic chemicals/compounds have been widely detected at dangerous levels in drinking water in many parts of the world posing a variety of serious health risks to human beings. One of these toxic chemicals is lead, so this paper aimed to evaluate of efficiency coconut husk as cheap adsorbent for removal lead under different conditions. Methods: In the sprin...
متن کاملManganese(II)-lithium and -sodium inverse crown ether (ICE) complexes.
Extending to transition metals, the class of compounds known as inverse crown ethers, two mixed alkali metal-manganese(II) amide ring compounds with oxo cores have been synthesised and crystallographically characterised, together with an oxo-free alkyl-amido precursor.
متن کاملsorption of lead (ii) ions on activated coconut husk
background: in recent years, various toxic chemicals/compounds have been widely detected at dangerous levels in drinking water in many parts of the world posing a variety of serious health risks to human beings. one of these toxic chemicals is lead, so this paper aimed to evaluate of efficiency coconut husk as cheap adsorbent for removal lead under different conditions. methods: in the spring o...
متن کاملPreparation, Identification of Two New Cd(II) Complexes including 4-(1H-Tetrazol-5-yloxy) – Phenylamine Cadmium(II) Chloride and 2-(1H-Tetrazol) - Pyridine Cadmium(II) Chloride
Two Cd complexes have been prepared by reaction of Cd (II) with 4-(1H-Tetrazol-5yloxy) – phenylamine (HTY) and 2-(1H-Tetrazol) pyridine (HTP) ligands. These new complexes were characterized by IR, UV-Visible, 1H-NMR and 13C-NMR spectroscopies. The changes observed between the FT-IR, H-NMR and UV-Vis spectra of the ligands and complexes allowed to establish the coordination mode of the metal in ...
متن کاملZinc(II), Cadmium(II), Mercury(II), and Lead(II) Complexes of N-Carboxymethyl-D,L-threonine in Aqueous Solution
The formation of complexes of Zn(II), Cd(II), Hg(II), and Pb(II) and N -carboxymethylD,L-threonine (H2CMT, H2L) in aqueous solutions has been studied by spectrophotometric and potentiometric methods. The complexation model for each system has been established by the HYPERQUAD program from the potentiometric data. Three different behaviors are found: ML2H, MLH, ML, MLOH, and ML2 complexes are fo...
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ژورنال
عنوان ژورنال: Analytical Sciences
سال: 1989
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.5.101