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The results of determinations of the enthalpies of solution in water at 298.15 K of phosphates of putrescine (Put), spermine (Spill) and spermidine (Spd) and their hydrated phosphates and homologs: Put. 2H(3)PO4; Spd .3H(3)PO4; Spill .4H(3)PO4; Put . H(3)PO4 .2H(2)0; Put 3 .H(3)PO4 .H20; Spd .3/2H(3)PO4 .3H20; Spd3,3 .3/2H(3)PO4 .3H(2)O; Spd .3/2H(3)PO4 .6H(2)0; Spm .2H(3)PO(4) .6H20; Spm(3,3,3) .2H(3)PO(4) .4H(2)0 are presented. It was found for Spill .2H(3)PO(4) .6H(2)0 and Spm(3,3,3) .2H(3)PO(4) .4H(2)0 that the values of the enthalpies of solution depend strongly on concentration, which indicates the presence of not only solute-solvent but also solute-solute interactions in these solutions.
Słowa kluczowe
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Tom
Strony
259--263
Opis fizyczny
Bibliogr. 10 poz.
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autor
- Calorimetry Department, Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland (Zakład Kalorymetrii, Instytut Chemii Fizycznej PAN)
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bwmeta1.element.baztech-article-BPP1-0012-0067