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Viscosity models for ionic liquids and their mixtures.

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Summary

This review examines viscosity models for ionic liquids (ILs) and their mixtures, crucial for industrial applications. It analyzes model limitations and mixing rules, drawing from inorganic molten salt knowledge.

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Area of Science:

  • Physical Chemistry
  • Chemical Engineering

Background:

  • Ionic liquids (ILs) are increasingly used in industrial processes.
  • Accurate modeling of IL properties, especially viscosity, is vital for process optimization.
  • Viscosity modeling for liquids lacks a universally accepted theoretical framework.

Purpose of the Study:

  • To review existing viscosity models for ionic liquids and their mixtures.
  • To discuss the scope of application and limitations of these models.
  • To analyze the formalism of mixing rules for ILs in comparison to inorganic molten salts.

Main Methods:

  • Literature review of viscosity models for ionic liquids.
  • Analysis of model applicability and limitations.
  • Comparative study of mixing rules for ILs and inorganic molten salts.

Main Results:

  • Identified various viscosity models developed or adapted for ionic liquids.
  • Discussed the scope and limitations of current models.
  • Highlighted the need for improved mixing rules for ILs based on molten salt insights.

Conclusions:

  • Robust viscosity models are essential for the industrial implementation of ionic liquids.
  • Current models and mixing rules for ILs require further development and validation.
  • Leveraging knowledge from inorganic molten salt systems can advance IL viscosity modeling.