The enthalpy of solution of phosphates and hydrated phosphates of putrescine, spermine, spermidine and their homologs in water at 298.15 K

Authors
Zielenkiewicz, A
Citation
A. Zielenkiewicz, The enthalpy of solution of phosphates and hydrated phosphates of putrescine, spermine, spermidine and their homologs in water at 298.15 K, B POL CHEM, 47(3), 1999, pp. 259-263
Citations number
10
Categorie Soggetti
Chemistry
Journal title
BULLETIN OF THE POLISH ACADEMY OF SCIENCES-CHEMISTRY
ISSN journal
02397285 → ACNP
Volume
47
Issue
3
Year of publication
1999
Pages
259 - 263
Database
ISI
SICI code
0239-7285(1999)47:3<259:TEOSOP>2.0.ZU;2-V
Abstract
The results of determinations of the enthalpies of solution in water at 298 .15 K of phosphates of putrescine (Put), spermine (Spm) and spermidine (Spd ) and their hydrated phosphates and homologs: Put 2H(3)PO(4); Spd :3H(3)PO( 4); Spm.4H(3)PO(4); Put H3PO4.2H(2)O; Put(3).H3PO4.H2O; Spd.3/2H(3)PO(4).3H (2)O; Spd(3,3).3/2H(3)PO(4).3H(2)O; Spd 3/2H(3)PO(4).6H(2)O; Spm.2H(3)PO(4) .6H(2)O; Spm(3,3,3).2H(3)PO(4).4H(2)O are presented. It was found for Spm 2 H(3)PO(4) 6H(2)O and Spm(3,3,3).2H(3)PO(4).4H(2)O that the values of the en thalpies of solution depend strongly on concentration, which indicates the presence of not only solute-solvent but also solute-solute interactions in these solutions.