Ionic Liquids are entirely made up of Ions also known as Room Temperature Ionic Liquids (RTILs). They are in demand because of their unmatchable uses and applications in the field of chemistry.

1. LOGO
IONIC LIQUIDS:
GREEN SOLVENTS FOR THE FUTURE
MRUDANG THAKOR & SANDIP DAVE

2. OUR TARGET…AS A CHEMIST
GREEN SEPERATION
GREEN SOLVENT
Are separation
process that
GREEN ENGINEERING consider both
Is the design of local & non-local
Is the development chemical product & economic &
& process that environmental
commercialization reduce or costs for which
of industrial eliminate the use viable alternatives
process that are & generation of can be proposed &
economically hazardous potentially
feasible & reduce substances. implemented.
the risk to human
health & the
environment

3. Green Separation: Green Solvent
Supercritical Flourus
phases Ionic Liquid
fluid

4. What is Ionic Liquid (IL) ?
 Salts with melting point close or below room
temperature , hence called RTILs.
 Salts with melting point lower than 300C
 Entirely made up of equal number of positive &
negative ions.
 So, entire system is neutral.

5. PROPERTIES OF RTILs
A salt Cation and or anion quite large
Freezing point Preferably below 100°C
Liquidus range Often > 200°C
Thermal stability Usually high
Viscosity Normally < 100 cP, workable
Dielectric constant Implied < 30
Polarity Moderate
Specific conductivity Usually < 10 mScm-1, “Good”
Molar conductivity < 10 Scm2 mol-1
Electrochemical window > 2V, even 4.5 V, except for Brønsted acidic
systems
Solvent and/or catalyst Excellent for many organic reactions
Vapor pressure Usually negligible

6. Ionic Liquids
Vapour Pressure
Melting Point
SALIENT
Viscosity
FEATURES
Miscibility with water
Thermal Decomposition

7. Vapour Pressure of Ionic Liquids
1 They have small or negligible vapour pressure
2 Higher thermal decomposition point
3 Ecological Solvents
4 Unique solvent

8. Melting Points of ILs
Large range of temperature (-900C to 1500C)
Modulation of melting point with variation of anion &/or cation
size.

9. VISCOSITY OF ILs
They are usually more viscous than classical solvents.
One of the major demerit of ILs

10. Miscibility with Water
By changing the nature of ions, It is possible to change
miscibility with water.

11. Applications
Biotechnology
B
Industrial
Energy A C Chemistry
IONIC
LIQUIDS
Extraction &
E D
Analytical Chemistry
Techniques

12. APPLICATIONS
1 2 3
BIOTECHNOLOGY ENERGY CHEMISTRY
Enzyme catalysis Solar Cell Heck Reaction
Protein Synthesis Battery Cell Suzuki Reaction
Cellulose Heat Storage Diels Alder
Chemistry Reaction
Friedel Crafts
Reaction

13. APPLICATIONS
4 5 6
INDUSTRIAL EXTRACTION ANALYTICAL
CHEMISTRY TECHNIQUES
Membrane Extraction of Bio- GC Stationary
Separation Diesel Phase
MALDI

14. FEW EXAMPLES OF APPLICATIONS
7 8 9
ENERGY CHEMISTRY EXTRACTION
EXTRACTION

15. FEW EXAMPLES OF APPLICATIONS
As Solvent As Absorbent
Ionic Liquids as potential solvents Model of CO 2absorption by an ionic liquid.
The model shows that the anions are
controlling absorption in ionic liquids. The
green units represent anions and the grey units
represent cations.

16. FEW Magic fluids….examples…

17. HOW TO FORMULATE THIS MAGICAL LIQUID?
1) ALKYLATION
2) ACID BASE
FOLLOWED BY
NEUTRALIZATION
METATHESIS

18. FOLLOWED BY
1) ALKYLATION
ELEVATED TEMPERATURE & REFLUXING
METATHESIS
SOLVENT APPROACH
MICROWAVE OR ULTRASONIC
SYNTHESIS
ROOM TEMPERATURE “WAIT & SEE”
SOLVENT FREE APPROACH.

19. QUATERNIZATION REACTION

21. SYNHESIS cont.…
QUATERNIZATION REACTION
ANIONIC EXCHANGE REACTION

22. CONCLUSION

23. LOGO