In order to produce Al flake in the ball mill, it is kept under an organic solvent. how can we remove it later from this solvent?
It depends strictly from the solvent you are using. You must check the physical parameters: vapor pressure, ignition temperature, autoignition temperature and it will determine which kind of equipment you will need.
Ali T-Raissi Thank you so much. I should check the condition and parameters needed. Also avoiding the formation of AlN is vital.
Dear Mahshid Saghatchi if someone in your department has a Schlenk line, you can filter the Al flakes under nitrogen, wash them e.g. with diethyl ether or pentane, and dry them under vacuum. Then they can be stored in an inert atmosphere (e.g. nitrogen).
Try to know the type of process control agent (PCA) used, then determine its ignition temperature and its vapor temperature. with these information, u can decide on using a rotary evaporator or you can oven dry it by setting the temperature below ignition temperature of the PCA used.
You can always use argon as the inert gas to take extra precautions. I don't remember how easily the nitride forms.
Dear Mahshid Saghatchi I agree with James Keane Bashkin in that the use of argon is a safe bet when there is a danger of nitride formation. I don't know either how easily AlN is formed, but I remember that nitride formation is a serious risk when working with Li powder.
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