0
$\begingroup$

So I made this solid material by boiling citric acid crystals and water then letting that cool to harden. It hardened into this solid that is really easy to mold and is transparent but it has this really annoying sticky texture that I want to get rid of. I don't know if its the water causing this texture or not but can someone tell me how I can get rid of this and whats happening?

Thanks

$\endgroup$
  • $\begingroup$ You got what you asked for. Dry it a bit more, and it becomes glassy. $\endgroup$ – Karl Feb 6 '18 at 20:54
  • 1
    $\begingroup$ What you've discovered (you're not the first) is the so-called sol-gel process. en.wikipedia.org/wiki/Sol%E2%80%93gel_process Very useful, but probably not in the way you wanted. What was it you wanted, anyway? $\endgroup$ – Karl Feb 6 '18 at 21:03
0
$\begingroup$

A vacuum oven with a solvent trap is a really good way to get rid of persistent water in your product. I'm not sure what your overall objective is so I'd read up on how aggressively (or gently) you can heat your product first though.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.