1. Objectives:
1. Demonstrate the process of distillation as a way of separating mixtures
2. Give the products derived from the process of distillation.
Equipment and Materials:
1 pc Liebig condenser
1 pc Bunsen burner
1 set LPG tank
Materials
2 pc beakers, 250 ml a box of match
125 ml dyed water 1 pc laboratory gown
1 pc graduated cylinder, 100 ml 1 pc laboratory gloves
2 pc alcohol thermometer 1 pail of water
1 pc Florence flask 1 pc funnel
3 pc universal clamp 1 rubber stopper of glass tubing
2 pc rubber hose, latex, Ø 10mm x Ø8mm x 500mm long for condenser attachment
1 pc rubber stopper or cork, two-holes for Florence flask 1 pc bent glass tubing for
1 pc Erlenmeyer flask, 250 ml condenser attachment
2 pc stands set
3 pc stand rods, 9.5 mm x 500 mm
2 pc stand base
3 pc multi clamps
Chemicals
BASIC DISTILLATION
NAME _____________________________________ GROUP ______________
SECTION ___________________________________ DATE ______________
DepEd-NSTIC

2. 125 ml dyed water/ coffee mixture
Safety Precautionary Measures :
Wear laboratory gown and gloves for protection
Tie back long hair and refrain from wearing loose clothing while working around a burnin n
flame
Keep flammable materials away from the Bunsen burner
No horse playing when performing the activity
Follow procedures carefully and with utmost attention
Procedure
1. Prepare the set-up to be used for the demonstration of the Distillation process as in
Figure 1 on page 22 .
The following are the procedures :
a) Prepare the stand set up and assemble.
b) Attach the ring with stem using a universal clamp
c) Place the wire gauze on top of the ring and stem.
d) Mount the Florence flask on top of the wire gauze using the universal clamp .
e) Place a wire gauze on top of the ring with stem. Place the jaws of the clamp above
the flask.
CAUTION : Do not over tighten the clamp as it may break the flask
f) Adjust the height of the clamp, the Florence flask and the ring with stem to leave
enough room for the Bunsen burner.
g) Carefully insert a two-holed rubber stopper into the Florence flask . Use a twisting
motion with gentle pressure. Protect your hands with the use of a pair of hand gloves,
a rag and use water or glycerin to lubricate the rubber stopper. One ( 1) cm or less of
the glass tubing should stick out of the rubber stopper when finished.
h) Attach the Florence flask to the Liebig condenser using a glass tubing bent for this
purpose and insert through a second hole of the rubber stopper and the rubber stopper
fitted to the left mouth of the Liebig condenser. Make sure there is a snug fit
between the two
Note: See to it that there is no air leak between the rubber stopper and glass
tubing and between the rubber stopper and the mouth of the flask.
Student Worksheet–Basic Distillation (2 of 4) DepEd-NSTIC
Page 20

3. i) Mount the right end of the Liebig condenser to the second stand set with the use of
the universal clamp. The angle of the clamp needs to be adjusted so that it matches the
angle of the Florence flask
j) Insert the rubber stopper into the opening of the condenser column and ensure that
there is a snug fit.
k) Attach one length of rubber hose to the lower condenser jacket . The other end of the
rubber tubing should be placed over the nozzle of the lab sink. This serves as the
water inlet
l) Mount a glass funnel to put water into the rubber hose by the use of a universal clamp
m) Carefully insert a thermometer into the second hole of the rubber stopper with the
glass tubing on the other hole. Use a twisting motion with gentle pressure. Protect
your hands with rags, and use water or glycerine to lubricate the thermometer. Place
the stopper in the opening of the flask's neck. Adjust the level of the thermometer so
that the alcohol bulb is a little below the opening of the glass tubing.
n) Place an Erlenmeyer flask underneath the spout of the condenser to collect the
distillate.
o) Attach a Bunsen burner to a gas tank, and adjust the rubber tubing so that the burner
sits safely beneath the Florence flask.
p) See to it that all components are well secured.
q) Pour 125 ml of dyed water/coffee mixture into the flask and secure it to the universal
clamp attached to the left stand rod. Why half-filled ?
r) Drop a few boiling stones into the flask with the solution or mixture
s) Finally, turn the faucet on slowly and steadily. It just needs a small water flow to cool
the condenser as too much of water flow might end up the tube to pop off.
Note: See to it that there is no air leak between the rubber stopper and glass
tubing and between the rubber stopper and the mouth of the flask
t) Ignite the burner and place it under the Florence flask.
u) Continue keeping up the flame until some of the distillate is collected inside the
cylinder. Use the hottest portion of the flame in heating the mixture.
v) Extinguish the burner when the measuring cylinder contains approximately 20 ml of
liquid.
w) Compare the color of the liquid and the Florence flask and the liquid collected inside
the graduated cylinder . Compare the temperature on the Florence flask and the
distillate.
Student Worksheet–Basic Distillation ( 3 of 4) DepEd-NSTICPage 21

4. Figure 1. Basic Distillation Set-up
Questions :
1. What do you call the mixture that is used in this activity ?
2. What process is used in the separation of this mixture ?
3. What kind of process is involved in distillation?
4. What are the physical processes involved in distillation?
5. What do you call the result that you have seen after the demonstration of the
activity?
6. What are the different products derived from the process of distillation?
Page 22