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假二元微乳液临界行为对结晶紫褪色反应动力学的影响

Kinetic investigation of alkaline fading of crystal violet in pseudo-binary microemulsions near critical region
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摘要 研究了结晶紫在水/AOT/正癸烷微乳液假二元体系远离临界区和近临界区的碱性褪色反应动力学.发现当温度远低于假二元体系的低临界点时,反应速率常数随温度的变化符合Arrhenius公式;当温度低于临界点0.30~1.80 K范围内,反应速率常数高于Arrhenius公式的推导值,而且越接近临界点,反应速率常数波动的幅度越大. Kinetic investigation of alkaline fading of crystal violet reaction were investigated in water/AOT/ n-decane (LCST, lower critical solution temperature) ω= 40.8 near and far away from the critical point. When the temperature was much lower than TC (low critical point of the solution), the reaction rate constant obeyed the Arrhenius equation. But when the temperature was less than TC about 0.300-1.800 K, namely near critical region, the reaction rate constant deviated from Arrhenius equation and appeared to speeding up phenomenon.
出处 《兰州大学学报(自然科学版)》 CAS CSCD 北大核心 2009年第F06期49-51,共3页 Journal of Lanzhou University(Natural Sciences)
基金 国家自然科学基金项目(20603014,20473035)
关键词 微乳液 结晶紫 动力学 临界现象 microemulsion crystal violet kinetics critical phenomena
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参考文献12

  • 1AN X Q, FENG J, SHEN W G. Critical behavior of a pseudo binary system foe a three component microemulsion[J]. J Phys Chem, 1996, 100(41): 16 674-16 677.
  • 2WHEELER J C. Singularity in the degree of dissociation of isobutyric acid, water solutions at the critical solution point[J]. Phys Rev A, 1984, 30: 648- 649.
  • 3MILNER S T, MARTIN P C. Critical slowing of chemical reactions[J]. Phys Rev A, 1986, 33: 1 996- 2 002.
  • 4GREER S C. Chemical reactions and phase transitions[J]. Int J Thermophys, 1988, 9(5): 761-768.
  • 5GITTERMAN M. Phase equilibria and critical phenomena in closed reactive systems[J]. J Stat Phys, 1990, 58: 707-748.
  • 6SNYDER RB, ECKERT C A. Chemical kinetics at a critical point[J]. AICHE J, 1973, 19:1 126-1 133.
  • 7MULLER M, STEIGER Am BECKER F. Thermokinetic investigation of a reaction which intersects the liquid-liquid coexistence curve near the consolute point[J]. Thermochem Acta, 1989, 151: 131-144.
  • 8KIM Y W, BAIRD J K. Reaction kinetics and critical phenomena: rates of some first order gas evolution reactions in binary solvents with a consolute point[J]. J Phys Chem A, 2005, 109:4 750-4 757.
  • 9BOUASKARNE M, AMOKRANE S, REGNAUT C. Hard core Yukawa fluid with temperature and densitydependent interaction: phase diagram of the AOT/water/decane microemulsion[J]. J Chem Phys, 1999, 111(5): 2 151.
  • 10KABAINOV A, OLSSON U, WWNNERSTORM H. Salt effects on nonionic microemulsions are driven by ad- sorption/depletion at the surfactant monolayer[J]. J Phys Chem, 1995, 99(16): 6 220-6230.

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