i want to do purification of organic solvent for example diethyl ether, alcohols, etc
the scale that i use will be lower than 50 grams
Ok, well this drying solvents over sodium carries an extremely high risk and should only be carried out by a trained individual. If you are not trained then seek somone who is in your department.
I have seen too many serious accidents with sodium drying to give details on an open forum. However if you don't have anyone to train you then I highly recommend purchasing dry solvents or getting a copy of Vogel's Textbook of Practical Organic Chemistry and Advanced Practical Organic Chemistry, J. Leornard and learn from them.
Please do not put your trust, and therefore personal safety, in the hands of an annonymous forum user when it comes to handling hazardous material.
Kind regards
Archer