Fundamental Organic Chemistry
Fundamental Organic Chemistry
Fundamental Organic Chemistry
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Scheme for liquid organics<br />
First: 1ml of unknown + drops of Schiff’s reagent<br />
- Ve<br />
Unknown is not aldehyde<br />
Go to second step<br />
Violet color<br />
Unknown is Formaldehyde or Acetaldehyde<br />
Confirmatory test for Formaldehyde<br />
and Acetaldehyde<br />
Second: 1ml of unknown +1ml of Na 2 CO 3 solution<br />
- Ve<br />
Go to the Third step<br />
CO 2 evolves with effervescence<br />
Unknown is carboxylic acid<br />
1ml of N.S. for acid + drops of FeCl 3<br />
- Ve<br />
Lactic acid<br />
60<br />
Red color turn by heating to<br />
brown ppt. unknown is formic<br />
acid or acetic acid<br />
Confirmatory test for formic<br />
and acetic acid
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