fractional distillation in the lab

Distillation is used for separating the constituents of a liquid mixture, which differ in their boiling points. Depending upon the difference in the boiling points of the constituents, different types of distillation like fractional distillation, steam ..

Fractional distillation is employed to separate two or more liquids that are miscible. The boiling points of these liquids should be fairly far apart. When distilled, the liquid with the lower boiling point distils over first, and is collected. It is the firs..

This liquid air contains two main substances, nitrogen and oxygen in liquid forms whose boiling points are -196 o C and -183 o C respectively. So when this liquid air is allowed to warm up, nitrogen with low boiling point boils over first and is separated. What remains behind is liquid oxygen, whi..

Refining of Petroleu..

The outgoing hot vapors from the main iron still preheat coal tar obtained from the destructive distillation of coal, in a pre-heater. In this process, coal tar loses most of the water it contains, along with some low boiling hydrocarbons. It is then sent to the main iron still (a side r..

Fractional distillation in a fractionating colum..

Distillation involves the conversion of a liquid into its vapors upon heating and then cooling the vapors back into the liquid. Depending on the difference in boiling points of liquids, distillation is of two types: simple distillation and fractional di..

Heavy water is prepared either by prolonged electrolysis or by fractional distillation of ordinary wate..

Air mainly consists of nitrogen and oxygen. Oxygen and nitrogen gases can be obtained separately by fractional distillation of liquefied air. Nitrogen distils over as vapour at a lesser boiling point (at 77.3 K) and liquid oxygen (at 90 K) is left behind in the f..