Distillation

It is a purification technique in which compounds with different boiling points can be separated by controlled heating. Vapors from the heated sample can be recondensed and collected, purer than the initial mixture. The liquid which has not vaporized is called the residue while the one which is collected in the receiver is called the distillate. There are various of distillation such as simple distillation, fractional distillation, steam distillation and vacuum distillation. Basically the distillation set up must have distillation flask, condenser with two tubes for the water in and out and the receiving flask which is used to collect the distillate.

Chemistry Laboratory Manual