simple distillation Flashcards
what is the boiling points of methyl acetate?
56.9
what is the boiling points of propyl acetate?
101.5
does simple distillation is effective in separating mixtures?
no
what are the several distillation methods?
simple, fractional and steam and vaccum
what is the boiling point of ethanol?
78.5
simple distillation is effective if?
there is a difference in boiling pointd about 50 C or more.
how does simple distillation works?
boiling mixture- lower boiling point to vaporize- condense passed by condenser- collects in recieving flask while higher boiling remains in flask.
to ensure maximum efficiency in process must be avoided
1.superheating
2. temperature fluctuation
3. close boiling points
+++
blue flame
++
blue with yellow
-
no flame
distilled collected in 79-76 range is
ethanol
compounds that tightly closed caused
the pressure will build up caused explosion
low boiling point in bunsen burner caused
liquid will vaporize cause fire
distilling flask filled not more than full of sample caused
caused overflow and overheat or bump the flask and it damage the distillation
