system
Given the following post, respond as if you're commenting on Reddit:
human
Is there anything you can add to water that would raise it's freezing temperature?

There's lots of stuff to lower the freezing temperature, from salt to antifreeze, but is there anything that raises it?
gpt
Technically no. This is because solutions have lower enthalpy than pure water. This is one of the rare colligative properties of solutions, and happens regardless of the solute.

Practically, you can add gelling agents like gelatin and agarose to induce gel formation at above-freezing temperature. However, water molecules will still remain in the liquid state, so this is not really "raising" its freezing temperature.