Steam Distillation 2014

EXPERIMENT NO –

Date:

STEAM DISTILLATION AIM:-

To verify Henry’s law for steam distillation

APPARATUS:-

CHEMICALS PROCEDURE

Dist Distil illa lati tion on flas flasks ks ,Ste ,Steam am Thermometer, Stop watch etc. :-

gene genera rato torr,

Meas Measur urin ing g

cyli cylind nder er,,

Beak Beaker ers, s,

 itro!en"ene, water.

:-

#. Take $%% ml of nitro!en"ene in distillation flask. &. 'ill up the water in steam generator. $. (rrange the assem!ly as shown in figure. ). Start the assem!ly as shown in figure. *. Start the condenser water flow as shown in figure. +. (fter (fter someti sometime me steam steam will generat generatee and will will enter into into the flask.

disti distilla llati tion on

. The distillation operation will start. -. The distil distillat latee water water vapor vapor of nitro! nitro!en" en"ene ene and steam steam will will go to condenser and finally the vapor miture is condensed.

the

/. 0ecord the distillation temperature.

CH 305: Mass Transfer Operations-I (P)

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OBSERVATION:-

Density of water Density of nitro!en"ene

1 #g2cc 1 #.& g2cc

3apor pressure of water at distillation

1 4444444444 mmHg

3apor pressure of nitro!en"ene at distillation 1 44444444444 mmHg 3olume of water collected

1 44444444444 m5

3olume of nitro!en"ene collected

1 44444444444 m5

Boiling point of nitro!en"ene

1 4444444444444%6

Temperature of distillation

1 44444444444 %6

'igure; to operate the process at a different total  pressure in the presence of li?uid water where the ratio of the vapour pressures of the su!stances may  !e more favoura!le =&> to sparge the superheated steam through the miture in the a!sence of li?uid water and to vapourise the organic li?uid !y allowing it to saturate the steam.

CH 305: Mass Transfer Operations-I (P)

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