The sections in this article are
A Practical Classification of Biphasic Systems Consisting of Liquids and Compressed Gases for Multiphase Catalysis
Physical Properties of Expanded Liquid Phases
Volumetric Expansion
Density
Viscosity
Melting Point
Interfacial Tension
Diffusivity
Polarity
Gas Solubility
Chemisorption of Gases in Liquids and their Use for Synthesis and Catalysis
In Situ
Generation of Acids and Temporary Protection Strategies
Switchable Solvents and Catalyst Systems
Using Gas‐expanded Liquids for Catalysis
Motivation and Potential Benefits
Sequential Reaction–Separation Processes
Tunable Precipitation and Crystallization
Tunable Phase Separations
Tunable Miscibility
Hydrogenation Reactions
Carbonylation Reactions
Oxidation Reactions
Miscellaneous
Why Perform Liquid–
SCF
Biphasic Reactions?
By Necessity (Unintentional Immiscibility)
To Facilitate Post‐Reaction Separation
To Facilitate Product/Catalyst Separation in Continuous Flow Systems
To Stabilize a Catalyst
To Remove a Kinetic Product
To Control the Concentration of Reagent or Product in the Reacting Phase
To Permit Emulsion Polymerization
To Create Templated Materials
Biphasic Liquid–
SCF
Systems
Solvent Selection
Aqueous–
SCF
Biphasic Systems
Ionic Liquid–
SCF
Biphasic Systems
Polymer–
SCF
Biphasic Systems
Liquid Product–
SCF
Biphasic Systems
Biphasic Reactions in Emulsions
Water‐in‐
SCF
Inverse Emulsions
SCF
‐in‐Water Emulsions
Ionic Liquid‐in‐
SCF
Emulsions
Applications of Emulsions