caa a22 4500 477139531 CHVBK 20180405111728.0 cr unu---uuuuu 170330e19970501xx s 000 0 eng 10.1007/BF02767604 doi (NATIONALLICENCE)springer-10.1007/BF02767604 Isotopic substitution effects on the volumetric and viscosimetric properties of water-dimethylsulfoxide mixtures at 25°C [Elektronische Daten] [Antonio Sacco, Enrico Matteoli] Densities and viscosities of binary mixtures (H2O or D2O) (1) + (DMSO or DMSO-D6)(2) have been measured over the entire mole fraction range; and the excess volumes, excess viscosities, and excess partial molar volumes Vf of the components have been obtained. All systems show negative excess volume Ve at all compositions, values for mixtures containing D2O being more negative than those with H2O byca. 0.03 cm3-mol-1 at x1, = 0.6, where a minimum is observed. The difference between DMSO and DMSO-D6 containing mixtures is negligible. The excess viscosity ηe is always positive and shows a maximum at x1 = 0.65; at this composition, the substitution of H2O with D2O causes an excess viscosity increment ofca. 0.35 mPa-s, while deuteration of DMSO brings about a smaller increase,ca. 0.1 mPa-s. The trend of V 2 E with concentration shows the characteristic features of moderately hydrophobic solutes in water (negative values and a minimum in the water-rich region), features that are slightly but significantly more marked in D2O than in H2O. The V 2 E values in the water-diluted region and at x1, =0 are more negative for D2O than for H2O. Plenum Publishing Corporation, 1997 Binary mixtures nationallicence isotope effects nationallicence H2O, D2O, DMSO, DMSO-D6, density nationallicence viscosity nationallicence excess partial molar volume nationallicence Sacco Antonio Dipartimento di Chimica, Campus Universitario, Via Orabona, 4, 70126, Ban, Italy aut Matteoli Enrico CNR, Institute di Chimica Quantistica ed Energetica Molecolare, Via Risorgimento, 35, 56126, Pisa, Italy aut Journal of Solution Chemistry Springer US 26/5(1997-05-01), 527-535 0095-9782 26:5<527 1997 26 10953 https://doi.org/10.1007/BF02767604 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02767604 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sacco Antonio Dipartimento di Chimica, Campus Universitario, Via Orabona, 4, 70126, Ban, Italy aut NATIONALLICENCE 700 1- Matteoli Enrico CNR, Institute di Chimica Quantistica ed Energetica Molecolare, Via Risorgimento, 35, 56126, Pisa, Italy aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US 26/5(1997-05-01), 527-535 0095-9782 26:5<527 1997 26 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer