That's the clean Pfed my man. Don't throw that shit away, or you've wasted your time. When clean pfed is crashed out of a NP solvent by gassing, cooling, or any other method, it will usually have an "applesaucy" appearance while still in suspension in the NP. Once the pfed is filtered and dried, if it is clean, it will often have a cotton-like appearance. The cottony look simply means that the crystals were crashed out of the NP in a rapid fashion, and are very small with little air pockets between them, making them look fluffy. If you want big crunchy crystals, try dissolving the cottony ones in boiling ISO, add a little acetone to the alky, and allow the solution to cool very slowly, over the course of several hours. This re-xtalizing procedure will remove even more impurities, and will often leave the perpetrator with thick nail-like crystals which will readily reduce to our favorite amine in a HI rxn.
CN