Table 1.

The list of cations tested in this research.

No.	Name of Anions	Acronym	Chemical Structures
1	1-ethyl-3-methyl imidazolium	[EMIM]
2	1-butyl-3-methyl imidazolium	[BMIM]
3	1-hexyl-3-methyl imidazolium	[HMIM]
4	1-octyl-3-methyl imidazolium	[OMIM]
5	1-ethyl-3-methyl pyridinium	[EMPyr]
6	1-butyl-3-methyl pyridinium	[BMPyr]
7	1-hexyl-3-methyl pyridinium	[HMPyr]
8	1-octhyl-3-methyl pyridinium	[OMPyr]
9	1-ethyl-1-methyl pyrrolidinium	[EMPyrro]
10	1-butyl-1-methyl pyrrolidinium	[BMPyrro]
11	1-hexyl-1-methyl pyrrolidinium	[HMPyrro]
12	1-methyl-1-octyl pyrrolidinium	[MOPyrro]
13	1-methyl-1-propyl piperidinium	[MPPipe]
14	1-butyl-1-methyl piperidinium	[BMPipe]
15	1-hexyl-1-methyl piperidinium	[HMPipe]
16	Tetramethyl ammonium	[TMAm]