Talk:Kagaku Kagaku no Mi/@comment-10870881-20150426030441/@comment-10870881-20150427105530

"Sodium acetate, when heated and cooled, becomes supersaturated in water. When it comes in contact with another object it re-crystalizes. This reaction also causes heat... Sodium acetate is also used as a preservative."

So while a bit far-fetched, In OP universe this could totally be a way of snaring, preserving, other crystally verbing things.

P.S Acetate can be produced in the human body by consuming alcohol, and some other things. You already got the sodium.