Purification%20and%20Characterization%20of%20Organic%20Compounds

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Purification and Characterization of Organic
Compounds
p. 1
2
Try to organize in Table Form
? Technique 1
Purification technique Application Character-ization Example

mixture of 2 or more liquids
b.p. of distillate
ethanol-water mixture
Distillation
p. 2
3
? Technique 2
Purification technique Application Character-ization Example

the b.p. of the liquid components are close
together
b.p. of distillate
benzene- methylbenzene mixture
Fractional Distillation
p. 3
4
? Technique 3
Purification technique Application Character-ization Example

liquids with very high b.p. but low thermal
stability
b.p. of distillate at low pressure
Reduced- pressure Distillation
nitrobenzene
p. 4
5
? Technique 4
Purification technique Application Character-ization Example

2,4-dinitro- phenylhydrazone of
carbonyl compounds in ethanol
Recrystall- ization
m.p. of crystal
organic solid
p. 5
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? Technique 5
Purification technique Application Character-ization Example

liquids with different polarities
Solvent Extraction
extraction of iodine from water
b.p. of product
p. 6
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? Technique 6
Purification technique Application Character-ization Example

liquids with different polarities
Paper Chromato- graphy
amino acid
Rf value
p. 7
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? Suggested Drawings
p. 8