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Ethanol

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by

Mohammed Attia

on 14 October 2014

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Transcript of Ethanol

Ethyl alcohol
(Ethanol)

General Class Reaction:
Structure
Physical Characters
Condition
Liquid, mobile, true liquid
Colour
Colourless
Odour
Alcoholic odour
Miscibility
Miscible with water
L.P: Neutral
Action of Sodalime (CaO+NaOH):
Action of 30% sodium hydroxide:
-On cold: No action
-On Hot: No action
Action of Conc.Sulphuric:
-On cold: No action
-On Hot: No action
Action of ferric chloride:
No change
Not done
1- Partial oxidation with schiff's reagent: Magenta red colour
2- Complete oxidation with FeCl3: Blood red colour
3- Esterification: Fruity odour
Procedure:
Step 1:
Add 2ml Ethanol
+2ml Acetic acid
+3dps (drop wise on the wall) Conc.H2SO4
W.B
2 min
Step 2:
Add 0.25gm NaCO3
+5ml water
Step 3:
Put 1 on 2
Iodoform (tri iodo methane): yellow ppt
4- Na metal test: Evolution of H2 gas
Procedure:
Add 2 ml Ethanol
+ 5 ml Iodine
+ NaOH drop wise
Thanks for your attention
Done by:
Mohammed Attia
Preparation of iodoform:
Add 5ml unkown
+10ml Iodine
+NaOH portion wise
((Don't Miss the Equation and Mechanism))
Preparation
Recrystallization of Salicylic acid
Step1:
0.5 Spoonful of mix
+20ml water
W.B
till dissolve
Step2:
Preheated filter paper
20ml hot water only
Beaker(1)
Beaker(2)
pour on
filter paper
Step3:
Beaker(1)
pour rabidly on
preheated filter paper
((Why??))
Step4:
Cooling conical flask under water
Step5:
Refiltration
Appear pure white crystals of salicylic acid
Special test:
Full transcript