I had the same problem. I heated up the nps too much while it was in the mixture in a water bath and it totally dissolved in the mixture ( my problem was that my miture wasnt really dry so i guess that could have caused the problem). Anyways now i know it is better to not heat it at all then mess it up. Now i am thinking of waiting for the nps in the mixture to completely evap. Then instead of putting the mixture in oven , is it wise to just dry it out with a blowdryer ? My mixture is in a thermo resistant glass pot but still i do not feel like putting it in the oven, though i am Positive it would withstand the advised 90-100 temp.
Completely off topic : i have been surfing around for quite a while now and i was wondering when will i get promoted to take part in ther other parts of the forum. I also somewhat tried to fill the quiz as good as possible. It is more of a stating an informative question than saying promote me now!. Thanks in advance.
Cheers,
Stitch
The path is endless and fascinating, but those who know why they follow it, are never late.