2019-06-25 18:23:27

How does recrystallization purify a substance?

To do recrystallization purify research, first of all let's prepare a filteration reactor (glass type is enough), heating and cooling circulator bath (any equipment could provide heating & cooling resource), vacuum pump could help you improve the efficient of research.

Then let's learn the simple working process of recrystallization purify from below picture

Step 1 is charging the solid material (your sample) in glass reactor, add related solvent in reaction vessel (the volume is decided by your experiment, we need to guarantee the solvent is enough to dissolve your sample).

Step 2 heating the reaction vessel, provide the heating condition to make your sample (solid / slurry type) could dissolve in the solvent totally. For this step, any heating method is ok, if you have enough budget, choose closed type reactor with stirring function will be more better, if you want to control the temperature accurately, heating circulator will be a very convenient choose.

Step 3 after your sample dissolved in the solvent, please cooling the reaction vessel slowly, please pay attention, cooling it slowly, if cooling too repaid, will result small crystals. So please cooling the reactor slowly, you could get the maximum amount of crystals. For precise laboratory research or production process, heating and cooling circulating bath is recommend, of course, if use in home, or small experiment, you put the reaction vessel in room to cool down slowly, also is ok.

Step 4 use suction filtration to get the crystals what you want. Choose suitable filter plate according to your sample, is very important, ordinary sand core filter is popular used, PTFE / stainless steel types are optional.

Step 5 solvent recovery system. Condenser and cold trap design to recover the solvent, protect environment and save cost, this design also could protect the vacuum pump.

How does recrystallization purify a substance? Below recrystallization filtration reactor will be your good choice. Contact info@toptionlab.com to get professional customize.