I think "solvate" meas a chemical reaction occurs to make something dissolve, whereas "dissolve" or "dissolution" is a physical process. T
To tell the truth, I used "solvate" as a synonym for "dissolve", and my supervisors came back to me with a, "Arkcon, you want to just write "dissolve" next time, okay, you're going to confuse auditors." Heh. Kinda embarrassing, really.