What Are Esters?

Esters are derived from substitution reaction of carboxylic acid and alcohol with elimination of water. Esters are a sweet-smelling substance. Additionally, they can be turned into polymers known as polyesters. Oils and fats are the best examples of esters. To differentiate between oil and fat, is measured by the melting point. If the melting point is lower than the room temperature, then it’s said to be oil (typically vegetable oil) or when the ester remains solid at room temperature its considered to be a fat.