Cloudy Re-X?

[howdoishotweb]

If a re-x goes cloudy could it caused by cooling too rapidly? What could be done if that happened; just re-heat and cool more slowly?

 

[endlessness]

It's normal it will cloud up as it cools, that's what happens with the solubility diminishing and the solvent not being able to hold the substance dissolved anymore. Next step is that it starts crystallizing.

 

[howdoishotweb]

What if all of the crystals that have started forming seem to be suspended in a jelly?

 

[Sykosis]

fridge time! Leave it their for an hour or two, then move it to the freezer.

 

[howdoishotweb]

Alright, I'm just curious how to get the jelly gone once all of the crystals have settled? EDIT: Found a picture of something like I am talking about.

 

[hobobrown]

The point is to dissolve the crystals back into the naphtha with a little heat and separating it from the gunk left over. The impurities should fall to the bottom. In Re-Xing, crystals shouldn't settle at all, instead, they should redissolve back into the naphtha. Once separated from the gunk, put them back in the freezer to precipitate.