Organic Compound Extraction Experiment: Separation of 4-Hydroxybenzaldehyde
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Experiment name 5/Extraction
Extraction
It’
s a
method
of
separation
&
purification
of
organic
compounds
depends
on
the
ability of
the compound.
to
dissolve
in
two immiscible solvents,
e.g.
,
H
2
O
&
CH
3
Cl.
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Name of
experiment:
Solvent
Extraction
Aim of
experiment:
Separation
of
4-hydroxybenzaldehyde
from
an unknown
mixture
containing NaCl and
4-
hydroxybenzaldehyde.
Properties
of
the
compound.s to be
separated:
4
-
H
y
d
r
o
x
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b
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n
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a
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d
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d
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:
Molecular formula
: C
7
H
6
O
2
,
molar
mass
:122.12
g/mol
Yellow-tan powder,
Soluble
in
ether
, Slightly
soluble
in water,
Sublimes.
S
o
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m
c
h
l
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i
d
e
:
Molecular formula
:
NaCl
,
molar mass
:58.44
g/mol
Ionic compound,
Colorless
crystals,
Soluble
in
water
.
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This experiment focuses on the extraction and purification of 4-Hydroxybenzaldehyde from a mixture containing NaCl. It involves the use of immiscible solvents and separation techniques to isolate the compound based on its solubility properties. The procedure includes transferring the sample to a separatory funnel, shaking with ether and water, and extracting the ethereal layers. By following these steps, the organic compound can be separated effectively.
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Presentation Transcript
Duha Adnan Mahmood 2020
Experiment name Experiment name 5 5/Extraction /Extraction Extraction It s a method of separation on the ability of the compound. to dissolve in two immiscible solvents, e e. .g g. ., H2O & CH3Cl. separation & purification purification of organic compounds depends Immiscible solvents are mixtures of liquids in each other Insoluble
Name Name of Aim Aim of of experiment experiment: : Solvent of experiment experiment: : Solvent Extraction Extraction Separation of 4-hydroxybenzaldehyde from an unknown mixture containing NaCl and 4- hydroxybenzaldehyde. Properties of the compound.s to be separated: 4 4- -Hydroxybenzaldehyde: Hydroxybenzaldehyde: Molecular formula: C7H6O2, molar mass:122.12 g/mol Yellow-tan powder, Soluble in ether, Slightly soluble in water, Sublimes. Sodium Sodium chloride Molecular formula : NaCl , molar mass :58.44 g/mol chloride: : Ionic compound, Colorless crystals, Soluble in water.
Procedure: 1)- Transfer an unkn. sample to a separatory funnel ; add (20ml ether & 20 ml of water) 2)- Shake gently for ( 15 20) min until no further pressure is released from the stem funnel. 3)-Leave for 5-10 min. to complete separation of the 2 layers. must be removed . Then separate the 2 layers The stopper 4)- Dry the ethereal layers https://youtu.be/1tmqUVSVPo4
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