While the individual components of DESs tend to
be individually well toxicologically characterized, there is very
little information about the toxicological properties of the
eutectic solvents themselves, and this needs to be further
investigated by the scientific community. The data from the few
publications addressing this issue is presented in section 2.6. The
term deep eutectic solvent was coined initially to describe type III
eutectics but has subsequently been used to describe all of the
eutectic mixtures described above. This is a logical approach, and
although this includes all of the early work on haloaluminates,
this is already the subject of numerous reviews and will not be
dealt with here other than in comparative terms