There's no water to act as a solute
ITYM solvent.
"solute (sŏl'yūt, sō'lūt)
n.
1. A substance dissolved in another substance, usually the component of a solution present in the lesser amount."
"solvent (sŏl'vənt, sl'-)
Chemistry.
1. a. A substance in which another substance is dissolved, forming a solution.
b. A substance, usually a liquid, capable of dissolving another substance."