1. Esters are used for making scents and artificial flavorings
Making Esters
Esters are used for making scents and artificial flavorings
Petrochemicals- are chemicals made from petroleum
the organic acids used in making an ester are petrochemicals
an organic acid + an alcohol an ester

2. You can make A LOT of different esters by mixing together different organic acids with different alcohols.
Write down a couple examples from these suggested formulations on the following 2 slides:

3. Different Potions! Formulation Ester Name Scent Produced
Methanol + Butyric Acid
Methyl butyrate
Pineapple or apple
Methanol + Benzanoic Acid
Methyl benzoate
Fruity
Ethanol + Formic Acid / Propanol + Isobutyric Acid
Ethyl formate / propyl isobutyrate
Rum
Ethanol + Butyric Acid
Ethyl butyrate
Pineapple or strawberry
Ethanol + Salicylic Acid
Ethyl salicylate
Oil of wintergreen
Ethanol + Heptanoic Acid
Ethyl heptanoate
Grape
Isobutanol + Formic Acid
Isobutyl formate
Raspberries
Butanol + Butyric Acid
Butyl butyrate
Pineapple
Pentanol + Acetic Acid
Pentyl acetate
Banana
Petanol + Pentanoic Acid
Pentyl pentanoate
Apple
Pentanol + Butyric Acid
Pentyl butyrate
Pear or apricot
Isopentanol + Acetic Acid
Isopentyl acetate
Pear or banana
Octanol + Acetic Acid
Octyl acetate
Fruity-orange
Benzanol + Acetic Acid
Benzyl acetate
Slightly of jasmine

4. Esters and the scent produced
Isoamyl acetate (isopentyl alcohol, acetic acid, conc. sulfuric acid) - banana
Methyl salicylate (methanol, salicylic acid, conc. sulfuric acid) - wintergreen
Ethyl butyrate (ethanol, butyric acid, conc. sulfuric acid) - pineapple
Benzyl butyrate (benzyl alcohol, benzyl butyrate, conc. sulfuric acid) – apricot/plum
Ethyl benzoate (ethanol, benzoic acid, conc. sulfuric acid) - fruity
Benzyl acetate (benzyl alcohol, acetic anhydride)- peach
Methyl butyrate (methanol, butyric acid) - apple
Octyl acetate (n-octyl alcohol, acetic acid, conc. sulfuric acid) - orange
A simple way of detecting the smell of an ester is to pour the mixture into some water in a small beaker.