Related Experiment Video
Updated: Mar 17, 2026

Quantifying Mixing using Magnetic Resonance Imaging
Published on: January 25, 2012
Characterization of Mixtures. Part 2: QSPR Models for Prediction of Excess Molar Volume and Liquid Density Using
Subhash Ajmani1,2, Stephen C Rogers3, Mark H Barley4
1Centre for Molecular Design, Institute of Biomedical and Biomolecular Science, University of Portsmouth, King Henry 1 Street, Portsmouth PO1 2DY, UK, Tel/Fax: +91-20-27292268. subhasha@novaleadpharma.com.
This study develops a quantitative structure-property relationship (QSPR) model to predict excess molar volume in binary mixtures. The model effectively uses specific mixture descriptors and neural networks, highlighting the importance of hydrogen bonding and thermodynamic factors.
Area of Science:
- Physical Chemistry
- Computational Chemistry
- Chemical Engineering
Background:
- Quantitative structure-property relationship (QSPR) models can characterize binary mixtures using mixing rules.
- Previous work demonstrated successful QSPR models for various mixture properties.
- Predicting excess thermodynamic properties of mixtures is crucial for chemical process design.
Purpose of the Study:
- To develop a QSPR model for predicting excess molar volume (V(E)) of binary mixtures.
- To utilize novel mixture descriptors designed to account for intermolecular interactions.
- To apply consensus neural networks for enhanced predictive accuracy.
Main Methods:
- Employed a set of five specific mixture descriptors designed for intermolecular interactions.
- Utilized consensus neural networks for QSPR model development.
- Validated the model's predictive capability for excess molar volume.
Main Results:
- Achieved a significant QSPR model for predicting excess molar volume (V(E)).
- Identified hydrogen bond and thermodynamic descriptors as key factors influencing V(E).
- The findings align with theoretical understanding of intermolecular forces in mixtures.
Conclusions:
- The developed QSPR model accurately predicts excess molar volume in binary mixtures.
- The chosen mixture descriptors are effective in capturing essential intermolecular interactions.
- These descriptors show potential for modeling a broad range of mixture properties, including complex systems.
More Related Videos
13:54A Workflow for Lipid Nanoparticle LNP Formulation Optimization using Designed Mixture-Process Experiments and Self-Validated Ensemble Models SVEM
Published on: August 18, 2023
06:19Integration of Animal Behavioral Assessment and Convolutional Neural Network to Study Wasabi-Alcohol Taste-Smell Interaction
Published on: August 16, 2024
Related Concept Videos
The Thermodynamics of Mixing
Thermodynamic Properties of Ideal Solutions
Mixtures of Gases: Dalton's Law of Partial Pressures and Mole Fractions
Nonideal Two-Component Liquid Solutions
Distillation: Vapor–Liquid Equilibria
Ideal Solutions or Mixtures