what is difference between ethanol and ethanoic acid?
Answers
Ethanol: Hydroxyl group (-OH group) is the functional group in ethanol. It is the characteristic property of alcohols. All alcohols have at least one –OH group in their structure.
Ethanoic acid: The functional group in ethanoic acid is a –COOH group. It is common for all carboxylic acids.
Properties:Ethanol: Ethanol is a monohydric alcohol with a sweet smell which boils at 78.5°C. It is the only hydrocarbon which dissolves in water in all proportions. Ethanol reacts with alkaline KMnO4 to give ethanoic acid while ethanoic acid does not react with alkaline KMnO4.
Ethanoic acid: It is a weak monoprotic acid in aqueous solution (pKa=4.76). Liquid acetic acid is a polar solvent like water. It dissolves both polar liquids such as sugars and salts, and non-polar liquids such as oils and elements like sulphur and iodine. It is readily and completely miscible with water chloroform, and hexane. Acetic acid has a strong pungent smell.
Uses:Ethanol: Ethanol is present in alcoholic drinks and also used as a biofuel for cars. It is a good solvent which can dissolve many organic solutions that are insoluble in water. Ethanol is used to manufacture many perfumes, cosmetics, and varnishes in the paint industry.
Ethanol as fuel:
CH3CH2OH + 3O2 → 2CO2 + 3H2O
Ethanoic acid: Acetic acid is used as a chemical reagent to produce other chemicals. It is used in larger quantities to produce vinyl acetate monomer; vinyl acetate can be polymerized to produce polyvinyl chloride or other polymers. In addition, acetic acid is used to produce esters which are used in inks, paintings and coatings. Acetic anhydride is another important chemical compound that can be synthesized by condensing two molecules of acetic acid. A small amount of ethanoic acid is used to produce household vinegar.
Acidity:Ethanol: Ethanol neither reacts with Sodium bicarbonate (NaHCO₃) nor changes the colour of a blue litmus paper. Therefore, it is less acidic than ethanoic acid.
Ethanoic acid: Ethanoic acid is a weak acid which reacts with Sodium bicarbonate (NaHCO₃) releasing CO2 gas. Also, it turns blue litmus into red.
• it is an alcohol
•it does not react with NaOH
• it reacts with alkaline KMnO4 to give ethanoic acid.
• it does not affect litmus paper.
Ethanoic acid
• it is an acid with pungent smell.
• it reacts with NaOH to give salt and water.
• it does not react with alkaline KMnO4.
• it turns blue litmus paper to red.
hope it helps you...