Evaporating naphtha on nonstick baking sheet

[TheMindBender]

Hello,

Someone I know was wondering if this is safe or would create some harmful reaction, etc.

Any help welcome.

Thanks

 

[ntwhtyouknw]

If your extracting spice you can just precipitate in a freezer, and save the solvent. If you are recrystalizing or just absolutely must evap, use glass, I'm not sure about a reaction, seems like you would scrape up some of the nonstick coating with the spice. Use a glass baking dish, or even a glass jar, or a wine glass even.

 

[Felnik]

Pyrex glass dish ideal , nonstick teflon surface not good
Because you will have to scrape the spice once the naptha
Evaporates you will end up with unwanted toxic crap in
Your spice .

 

[TheMindBender]

Thanks. We did freeze precipitate and ended up getting a nice yield of (almost completely) white crystals (I think around .6%). Afterwards we were going to evap the remaining naphtha however we just decided to re-freeze precipitate. Again, thanks for the help.