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Stoichiometric reactions of metal hydroxycarbonates with the acid trans-1,2-cyclohexanediaminotetraacetic acid (H 4 CDTA) in water under reduced pressure yielded [Cu(H 2 CDTA)] H 2 O (I) and [Ni(H 2 CDTA)(H 2 O)] 4H 2 O (II). Both compounds were characterized by TG-DTA analysis, spectral properties (IR, reflectance and RSE) and X-ray diffraction....
The characterisation of humic substances is very important and has been carried out by many investigators using a variety of methods. In this paper the humic acids extracted from different sediments of Basse Normandie have been studied.Elementary analysis, TG and DTA methods together with EPR and polarographic methods have been used to characterise humic substances. The results are related to commercially...
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