Diffusion Coefficients of the Ternary System Calcium Chloride-Caffeine-Water at (25 and 37) °C

被引:10
|
作者
Ribeiro, A. C. F. [1 ]
Barros, M. C. F. [1 ]
Lobo, V. M. M. [1 ]
Quintanilla, Gloria [2 ]
Esteso, M. A. [3 ]
机构
[1] Univ Coimbra, Dept Chem, P-3004535 Coimbra, Portugal
[2] Univ Alcala de Henares, Fac Farm, Dept Quim Organ, Madrid 28871, Spain
[3] Univ Alcala de Henares, Fac Farm, Dept Quim Fis, Madrid 28871, Spain
来源
关键词
AQUEOUS-SOLUTIONS; BETA-CYCLODEXTRIN; BINARY; TEMPERATURES;
D O I
10.1021/je9005135
中图分类号
O414.1 [热力学];
学科分类号
摘要
Ternary mutual diffusion coefficients measured by the Taylor dispersion method are reported for aqueous solutions of CaCl2-caffeine at carrier concentrations from (0.0025 to 0.0500) mol.dm(-3) for each solute, respectively. The results are compared with those obtained for the binary systems H2O-CaCl2 and H2O-caffeine, also reported here. From these data, it is possible to make conclusions about the influence of the caffeine solutes in the diffusion of calcium chloride and to contribute to a better understanding of the structure of this system.
引用
收藏
页码:897 / 900
页数:4
相关论文
共 50 条
  • [1] Diffusion Coefficients for the Ternary System Water + Chloroform + Acetic Acid at 25 °C
    Daniela Buzatu
    Florin D. Buzatu
    Luigi Paduano
    Roberto Sartorio
    Journal of Solution Chemistry, 2007, 36 : 1373 - 1384
  • [2] Interaction between copper chloride and caffeine as seen by diffusion at 25 °C and 37 °C
    Ribeiro, Ana C. F.
    Simoes, Susana M. N.
    Lobo, Victor M. M.
    Valente, Artur J. M.
    Esteso, M. A.
    FOOD CHEMISTRY, 2010, 118 (03) : 847 - 850
  • [3] Diffusion coefficients of the ternary system α-cyclodextrin sodium benzenesulfonate water at 25 °C:: The effect of chemical equilibrium and complex formation on the diffusion coefficients of a ternary system
    Paduano, L
    Sartorio, R
    Vitagliano, V
    JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (25): : 5023 - 5028
  • [4] THERMODYNAMICS OF TERNARY SYSTEM - WATER-POTASSIUM CHLORIDE-CALCIUM CHLORIDE AT 25 DEGREES C
    ROBINSON, RA
    COVINGTON, AK
    JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION A-PHYSICS AND CHEMISTRY, 1968, A 72 (03): : 239 - +
  • [5] Diffusion Coefficients of the Ternary System β-Cyclodextrin plus Caffeine + Water at 298.15 K
    Ribeiro, Ana C. F.
    Santos, Cecilia I. A. V.
    Lobo, Victor M. M.
    Cabral, Ana M. T. D. P. V.
    Veiga, Francisco J. B.
    Esteso, Miguel A.
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2009, 54 (01): : 115 - 117
  • [6] Diffusion coefficients for the ternary system water plus chloroform plus acetic acid at 25°C
    Buzatu, Daniela
    Buzatu, Florin D.
    Paduano, Luigi
    Sartorio, Roberto
    JOURNAL OF SOLUTION CHEMISTRY, 2007, 36 (11-12) : 1373 - 1384
  • [7] Interaction between calcium chloride and some carbohydrates as seen by mutual diffusion at 25 °C and 37 °C
    Ribeiro, Ana C. F.
    Barros, Marisa C. F.
    Lobo, Victor M. M.
    Sobral, Abilio J. F. N.
    Fangaia, Sonia I. G.
    Nicolau, Pedro M. G.
    Guerra, Fernando A. D. R. A.
    Esteso, M. A.
    FOOD CHEMISTRY, 2011, 124 (03) : 842 - 849
  • [8] Hydrodynamic and thermodynamic aspects of diffusion coefficients in the ternary system water-chloroform-acetic acid AT 25°C
    Buzatu, Daniela
    Popovici, Ana-Maria
    Buzatu, Florin Dorian
    Paduano, Luigi
    Sartorio, Roberto
    UPB Scientific Bulletin, Series A: Applied Mathematics and Physics, 2007, 69 (03): : 73 - 80
  • [9] HYDRODYNAMIC AND THERMODYNAMIC ASPECTS OF DIFFUSION COEFFICIENTS IN THE TERNARY SYSTEM WATER-CHLOROFORM-ACETIC ACID AT 25°C
    Buzatu, Daniela
    Popovici, Ana-Maria
    Buzatu, Florin Dorian
    Paduano, Luigi
    Sartorio, Roberto
    UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN-SERIES A-APPLIED MATHEMATICS AND PHYSICS, 2007, 69 (03): : 73 - 80
  • [10] Diffusion coefficients for the system potassium chromate water at 25 degrees C
    Iadicicco, N
    Paduano, L
    Vitagliano, V
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1996, 41 (03): : 529 - 533