Island Type Liquid-Liquid Equilibrium Diagrams

Consider a ternary mixture composed of water, dimethyl sulfoxide (DMSO), and tetrahydrofuran (THF). For user-set values of the temperature, this Demonstration computes the liquid-liquid equilibrium diagram, which is classified as an island type. A few tie lines (the green line segments) are included. An island binodal curve has two plait points that limit the tie lines on each side of the island. The plait points (the red dots) are calculated.
In addition, some representative data is given when you select the "table" tab. All calculations are based on the NRTL (non-random two-liquid) model and use the arc-length continuation technique. Parameters for the NRTL model were obtained from [1].


  • [Snapshot]
  • [Snapshot]
  • [Snapshot]


[1] A. Zuber, R. Raimundo, M. R. Mafra, L. C. Filho, J. V. Oliveira, and M. Corazza, "Thermodynamic Modeling of Ternary Liquid-Liquid Systems with Forming Immiscibility Islands," Brazilian Archives of Biology and Technology, 56(6), 2013 pp. 1034–1042. doi:10.1590/S1516-89132013000600020.
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.

Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and
interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Step-by-Step Solutions »
Walk through homework problems one step at a time, with hints to help along the way.
Wolfram Problem Generator »
Unlimited random practice problems and answers with built-in step-by-step solutions. Practice online or make a printable study sheet.
Wolfram Language »
Knowledge-based programming for everyone.
Powered by Wolfram Mathematica © 2018 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+