Banana Oil Synthesis Report
aMicroscale Synthesis of Isopentyl Acetate (Banana Oil)
Objective: Carried out the microscale synthesis of isopentyl acetate by direct esterification of acetic acid and isopentyl alcohol. This was an acid catalyzed Fischer esterification. Both extraction and distillation were employed to obtain a pure product. IR spectroscopy and gas chromatography were used to determine purity of the final product.
Reagents:
* Compound: | * MW (g/mol): | * MP (°C): | * BP (°C): | * Density (g/mL): | * Properties/ Safety: | * Isopentyl AlcoholC5H12O | * 88.15 | * -117.0 | * 132.0 | * 0.81 | * Clear, colorless liquid, disagreeable odor, flammable. Hazardous in case of skin, eye contact and ingestion and inhalation. | * Acetic Acid C2H4O2 | * 60.05 | * 17.0 | * 118.1 | * 1.05 | * Clear, colorless liquid, pungent odor, flammable. Skin, eye irritant. Inhalation and ingestion hazard. | * Sulfuric Acid H2SO4 * | * 98.08 | * 10.0 | * 37.0 | * 1.84 | * Thick, oily, odorless, colorless liquid. Skin, eye, inhalation, ingestion irritant. Overexposure can lead to death. May produce burns. | * Sodium Bicarbonate NaHCO3 * | * 84.00 | * 50.0 | * 851.0 | * 2.20 | * Odorless white crystals. Slightly hazardous to skin, eyes, and upon ingestion and inhalation. | * Anhydrous Sodium Sulfate Na2SO4 * | * 142.04 | * 884.0 | * 1429.0 | * 2.66 | * Odorless solid, white. Hazardous upon eye and skin contact and ingestion and inhalation | * Isopentyl AcetateC7H14O2 * | * 130.19 | * -78.0 | * 142 | * 0.876 | * Colorless liquid, banana odor, flammable. Hazardous upon ingestion and inhalation, and eye and skin hazard | *
Balanced Esterification Equation:
C5H12O + C2H4O2→ C7H1402 + H2O
Reactions:
Esterification of acetic acid and isopentyl alcohol:
+ H2O
Intermediate Reaction:
Extraction of acetic acid by neutralization of acetic acid with
Objective: Carried out the microscale synthesis of isopentyl acetate by direct esterification of acetic acid and isopentyl alcohol. This was an acid catalyzed Fischer esterification. Both extraction and distillation were employed to obtain a pure product. IR spectroscopy and gas chromatography were used to determine purity of the final product.
Reagents:
* Compound: | * MW (g/mol): | * MP (°C): | * BP (°C): | * Density (g/mL): | * Properties/ Safety: | * Isopentyl AlcoholC5H12O | * 88.15 | * -117.0 | * 132.0 | * 0.81 | * Clear, colorless liquid, disagreeable odor, flammable. Hazardous in case of skin, eye contact and ingestion and inhalation. | * Acetic Acid C2H4O2 | * 60.05 | * 17.0 | * 118.1 | * 1.05 | * Clear, colorless liquid, pungent odor, flammable. Skin, eye irritant. Inhalation and ingestion hazard. | * Sulfuric Acid H2SO4 * | * 98.08 | * 10.0 | * 37.0 | * 1.84 | * Thick, oily, odorless, colorless liquid. Skin, eye, inhalation, ingestion irritant. Overexposure can lead to death. May produce burns. | * Sodium Bicarbonate NaHCO3 * | * 84.00 | * 50.0 | * 851.0 | * 2.20 | * Odorless white crystals. Slightly hazardous to skin, eyes, and upon ingestion and inhalation. | * Anhydrous Sodium Sulfate Na2SO4 * | * 142.04 | * 884.0 | * 1429.0 | * 2.66 | * Odorless solid, white. Hazardous upon eye and skin contact and ingestion and inhalation | * Isopentyl AcetateC7H14O2 * | * 130.19 | * -78.0 | * 142 | * 0.876 | * Colorless liquid, banana odor, flammable. Hazardous upon ingestion and inhalation, and eye and skin hazard | *
Balanced Esterification Equation:
C5H12O + C2H4O2→ C7H1402 + H2O
Reactions:
Esterification of acetic acid and isopentyl alcohol:
+ H2O
Intermediate Reaction:
Extraction of acetic acid by neutralization of acetic acid with
References: Science Lab. (2012) All reagents listed [Material Safety Data Sheets]. Retrieved from www.sciencelab.com