Thursday, February 28, 2013

Iment Title: Acid-Base Extraction

Radu Purtuc | Chemistry 231 - Lab | Section 32
Ronnie :: team-member

TECH 705, SEPARATING ACIDS AND NEUTRAL COMPOUNDS BY SOLVENT EXTRACTION - MACROSCALE EXTRACTION
July 6, 2006
Lab Report
INTRODUCTION
Purpose: using declivity technique to separate acetanilide, p-toluic acid, and p-tert-butylphenol; then
measure the melting points of each combine and comparing them to the statistical values.
Background: separating acids and neutral compounds by consequence inception is a expenditureful technique used in
dedicate by chemists to separate organic compounds from mixture of other compounds. It mostly involve several steps, with limiting factors being the number and product purity of compounds to be extracted from source mixture. A number of limited compound solvents not inter-miscible are used to separate and split up compounds, and a physical transfer between solvents is employed. An example of use is
cleaning compounds of impurities, where different solvents work as a molecular(a) filter that interacts differentially with compound and impurities respectively. In the end of the process, impurities become
physically separated from the now pure compound, facilitating further transferring and further repurification / extraction if needed.
MATERIALS AND METHODS
Acetanilide
tert-butyl methyl ether
p-tert-butylphenol
p-toluic acid
0.5M NaHCO3
3M HCL
0.

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5M NaOH
NaSO4 anhydrous

Separatory Funnel
Buchner filter paper
Sand Bath
Microspatula
Disposable Pipet
heated plate
turn chips
support stand

Pasteur pipets with latex bulb
test tubes (2)
utility clamp
watch glasses
advisement paper
melting pint capillary tubes
thermometer

EXTRACTION
Dissolve acetanilide, p-toluic acid, and p-tert-butylphenol in t-butylmethyl ether
fire p-toluic acid from the ether bottom with NaHCO3 solution
Extract p-tert-butylphenol from the ether layer with NaOH solution
Isolate p-toluic acid by adding HCl solution to NaHCO3 layer
Isolate p-tert-butylphenol by...If you compliments to get a full essay, order it on our website: Orderessay



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