Patent ID: 8518298

Claim:
A mixture having a freezing point of up to 50° C., formed by reaction between two components consisting of: (A) one molar equivalent of a salt of formula I (M a+ )(X − ) n I or a hydrate thereof; wherein M represents one or more metallic elements selected from the group consisting of Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, In, Sn, Tl, Pb, Cd, Hg and Y, X − is one or more monovalent anions selected from the group consisting of halide, nitrate and acetate and n represents 2 or 3; and (B) from one to eight molar equivalents of a complexing agent consisting of one or more compounds of formula II and/or formula III, wherein R 1 represents H, C 1-4 alkyl (which latter group is optionally substituted by one or more F atoms), or N(R 2 )R 3 ; R 2 and R 3 independently represent H or C 1-4 alkyl (which latter group is optionally substituted by one or more F atoms); A represents C 2-10 alkylene optionally (i) substituted by one or more substituents selected from F, OH, SH and N(R 4 )R 5 , and/or (ii) interrupted by one or more groups selected from O, S and NR 6 ; and R 4 to R 6 independently represent H or C 1-4 alkyl (which latter group is optionally substituted by one or more substituents selected from F and OH); provided that the compound of formula III does not contain any C-atoms that are bonded to more than one atom selected from the group O, S and N, which reaction is performed in the absence of extraneous solvent.