Etil Asetatın Fischer Esterifikasyonu

Meyvemsi aromalı bir ester sentezi

Organic Synthesis Advanced (University) 90 dak ~$20,00

Hedef

Sülfürik asit katalizörlüğünde asetik asit ve etanolun Fischer esterifikasyonu ile etil asetat (oje çıkarıcı aroması) sentezlemek.

Arka Plan

Fischer esterification is the acid-catalyzed condensation of a carboxylic acid with an alcohol to form an ester and water. The reaction is reversible, and excess alcohol is used to drive the equilibrium toward product formation. Ethyl acetate has a characteristic sweet, fruity smell and is widely used as an industrial solvent.

Güvenlik Uyarıları

  • Concentrated sulfuric acid is extremely corrosive
  • Glacial acetic acid causes burns
  • Ethanol and ethyl acetate are flammable — no open flames
  • Work in a fume hood
  • Add sulfuric acid slowly to the mixture

Gerekli KKD

goggles gloves lab_coat

Malzemeler

  • Glacial acetic acid (10 mL)
    Corrosive
  • Ethanol (absolute) (15 mL)
    Excess to drive equilibrium
  • Sulfuric acid (H₂SO₄) (2 mL)
    Concentrated, catalyst
  • Sodium bicarbonate solution (50 mL)
    5% for washing
  • Anhydrous sodium sulfate (5 g)
    Drying agent

Ekipman

Round-bottom flask (100 mL) Reflux condenser Heating mantle Separating funnel Boiling chips Thermometer

Prosedür

1

Add 15 mL ethanol and 10 mL glacial acetic acid to the round-bottom flask with boiling chips.

3 dak Handle acetic acid in fume hood
2

Slowly add 2 mL concentrated H₂SO₄ as catalyst. Swirl gently to mix.

3 dak Add acid slowly — exothermic
3

Attach the reflux condenser and heat gently at reflux for 45 minutes.

45 dak Ensure water is flowing through condenser
4

Cool the flask. Pour the contents into a separating funnel with 30 mL water.

5 dak
5

Wash the organic layer with 25 mL of 5% NaHCO₃ to remove excess acid. Vent the funnel frequently.

5 dak CO₂ gas released — vent carefully
6

Separate the organic layer (top) and dry over anhydrous Na₂SO₄ for 10 minutes.

12 dak
7

Filter off the drying agent. Carefully smell the product by wafting — note the fruity aroma of ethyl acetate.

3 dak Never sniff directly — waft vapors toward nose
8

Calculate the yield based on the volume collected and the theoretical yield.

5 dak

Beklenen Sonuçlar

A clear, colorless liquid with a sweet, fruity smell characteristic of ethyl acetate. Typical yield is 60-70% due to the equilibrium nature of the reaction.

Temizlik

Dispose of organic waste in the designated container. Neutralize acid waste before disposal. Rinse all glassware with acetone then water.

Ayrıntılar

Kategori
Organic Synthesis
Zorluk
Advanced (University)
Süre
90 dak
Tahmini Maliyet
$20,00
Adımlar
8
Malzemeler
5

Daha Fazla Deney

Aldol Kondenzasyonu (Dibenzalaseton) 75 min Asetaminofen (Parasetamol) Sentezi 80 min Aspirin (Asetilsalisilik Asit) Sentezi 90 min Bitkisel Yağdan Biyodizel Üretimi 60 min Çaydan Kafein Ekstraksiyonu 90 min Luminol Sentezi 120 min Muz Aroması (İzoamil Asetat) Sentezi 90 min Naylon 6,10 Yapımı (Naylon İp Hilesi) 30 min Sabunlaşma ile Sabun Yapımı 60 min Sümüklü Oyun Hamuru Sentezi (Çapraz Bağlı PVA) 20 min

Frequently Asked Questions

What is the objective of Etil Asetatın Fischer Esterifikasyonu?
Sülfürik asit katalizörlüğünde asetik asit ve etanolun Fischer esterifikasyonu ile etil asetat (oje çıkarıcı aroması) sentezlemek.
How difficult is Etil Asetatın Fischer Esterifikasyonu?
This experiment is rated as Advanced (University). It takes approximately 90 minutes to complete.
What safety precautions are needed for Etil Asetatın Fischer Esterifikasyonu?
Key safety precautions include: Concentrated sulfuric acid is extremely corrosive; Glacial acetic acid causes burns; Ethanol and ethyl acetate are flammable — no open flames.
What materials are needed for Etil Asetatın Fischer Esterifikasyonu?
The main materials required are: Glacial acetic acid, Ethanol (absolute), Sulfuric acid (H₂SO₄), Sodium bicarbonate solution, Anhydrous sodium sulfate.
What results should I expect from Etil Asetatın Fischer Esterifikasyonu?
A clear, colorless liquid with a sweet, fruity smell characteristic of ethyl acetate. Typical yield is 60-70% due to the equilibrium nature of the reaction.