سكيمات عملي العضويه السكشن الثانى (لتكمله الكتاب )

[Mohamed7755]

Scheme Of Glycerol
Ch2-OH
Ch-OH
Ch2-OH

Physical Characters :-
1. Condition → Liquid , Viscous
2. Color → Colorless
3. Odor → Odorless
4. Miscibility : - H2O → Miscible with H2O
- Litmus Paper → No Change Comment : Neutral compound
- Anhydrous CuSO4 → No Change Comment : True liquid
* General Reactions :-
1. Dry Heat :
- Change in appearance → Boil , Evaporate
- Degree Of Inflammability → Inflammable , Non-Smoky So it maybe : Lower aliphatic comp. ound
- Nitration Test → Not applied
- Odor produced → No change
- Residual Ash → Absent Comment : Non me tallic compound
2. Action Of Sodalime →
-on cold Not applied
-on hot Not applied
3. Action Of 30% NaOH →
-on cold :No Characteristic Observation
-on hot :No Characteristic Observation
4. Action Of Na2CO3 → No effervescence Comment : Not strong acidic comp.
5. Action Of FeCl3 → No Ch. Observation
6. Action Of C.H2SO4 → On Hot → blacking + acrolin bad odor Comment : maybe Glycerol
7. Element test : X absent N absent S absent

* Special Tests :-
1- Borax test :-
- Borax + H2O → add Ph. Ph. → pink color → add sample → the color will disappear and on heating it will reappear and in cooling it will disappear .
2- Oxidation:-
- sample + K2Cr2O7 solution + 3 drops of C.H2SO4 → Transfer 1 ml. of the oxidation product. to a test tube and add 2 ml of conc. H2SO4, CO2and CO are produced , giving effervescence

Scheme Of benzyl alcohol

Physical Characters :-
1. Condition → Liquid , Mobile
2. Color → Colorless
3. Odor → Alcoholic Odor
4. Miscibility :
4. Miscibility :
- H2O → IMMiscible
- Litmus Paper → Comment :
- Anhydrous CuSO4 → Comment :
-NaHCO3:IMMiscible
-dilHCLIMMiscible
-concH2SO4IMMiscible
general reactions :-
1. Dry Heat :-
- Change in appearance → Boil , Evaporate
- Degree Of Inflammability → Inflammable , Smoky So it maybe : may be aromatic compound or highly unsaturated aliphatic compound
- Nitration Test → sample +conc H2SO4 +conc HNO3 → yellow oily solution with bitter almond odor Comment :-aromatic compound

- Odor produced → No change - Residual Ash → Absent Comment : Non me tallic compound
2. Action Of Sodalime →
-on cold Not applied
-on hot Not applied
3. Action Of 30% NaOH →
-on cold :No Characteristic Observation
-on hot :No Characteristic Observation
4. Action Of Na2CO3 → No effervescence. Comment : Not strong acidic compound
5. Action Of FeCl3 → No Characteristic Observation
6. Action Of C.H2SO4 → gives greenish white gelatinous polymer comment : may be benzyl alcohol
7. Element test : X absent S absent N absent

Special Tests :-
1- Esterification:-- sample + benzoic acid + Conc.H2SO4 → Boil in Water bath → pour into Na2CO3 solution. → fragrant odor

2- Oxidation

0.5ml benzyl alcohol+4 ml KMnO4 .+0.3 g of Na2CO3 solid. Boil for 2 minute, a brown ppt.of MnO2 is formed.

3- Partial Oxidation:-
2 ml benzyl alcohol+2 ml dil HNO3 → heat gently →bitter almond odor

[sevenmada]

الف شكر يا دوك

[Mohamed7755]

الف شكر يا دوك

العفو

[Asasm77555]

جزاك الله خيرا يا محمد

[Mohamed7755]

جزاك الله خيرا يا محمد

جزاك الله خيرا منه

[مصرية وافتخر]

شكرا علي مجهود حضرتك يادكتور

[Mohamed7755]

شكرا علي مجهود حضرتك يادكتور

العفو

[a7med.gamal]

Thanks kteeeeeeeeeer ya ma3lem

جزيت خيراً يا ......... دوك/محمد

[Mohamed7755]

thanks kteeeeeeeeeer ya ma3lem

جزيت خيراً يا ......... دوك/محمد

جزاك الله خيرا منه