Distillation under reduced pressure, Chemistry

Assignment Help:

Distillation under reduced pressure - Purification of organic compounds

This process is employed for the purification of high boiling liquids and liquids that decompose at or below their boiling points. The crude liquid is heated in distillation flask fitted along with a water condenser, receiver and vacuum pump. Since the pressure is reduced, the liquid begins to boil at a much lower temperature as compared to its normal boiling point. The vapour is condensed through water condenser and the pure liquid collects in the receiver.

Glycerol that decomposes at its boiling point (563 K) within atmospheric pressure can be distilled with no decomposition at 453 K under 12 mm of Hg. Likewise, sugarcane juice is concentrated in sugar industry by evaporation under reduced pressure that saves a lot of fuel.


Related Discussions:- Distillation under reduced pressure

Define shelf life, Q. Define shelf life? Shelf life is the time between...

Q. Define shelf life? Shelf life is the time between the production and packaging of the product and the point at which it becomes unacceptable under defined environmental cond

Lab report, how to write a lab report

how to write a lab report

Why polar solvent favours sn1 mechanism , The S N 1 reaction is a substit...

The S N 1 reaction is a substitution reaction in organic chemistry. "SN" place for nucleophilic substitution and the "1" shows  the fact that the rate-determining step is unimole

Assignment, Discuss hartree-fock self consistent field theory . what are it...

Discuss hartree-fock self consistent field theory . what are its demerit.

Determine atomic number and neutrons of an element, An element have atomic ...

An element have atomic weight 40 and it's electronic configuration is 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 . Then its atomic number and number of neutrons will be: (1) 18 and 22

Anamalous behaviour of lithium, why lithium is the strongest reducing agent...

why lithium is the strongest reducing agent in alkali metals

Define the phenomenon catenation, Carbon has maximum catenation ability. Th...

Carbon has maximum catenation ability. The self-linkage of the atoms of elements to make long chains is known as catenation.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd