1 Attachment or commitment to a person, cause, or belief: a strict adherence to etiquette he moved to Avignon and won the adherence of the French king. Many instances of performance-based design are approved for their adherence to safety principles. 2  Ceremony implies honor, and honor implies an adherence to traditions.
Ester is the condensation product of an Carboxylic acid and alcohol in organic chemistry.In condensation two molecules combine such that the eleimination of small molecule like water takes place. Or it could be said that ester are dehydration product of alcohol and carboxylic acid. Reaction could be written as : RCOOH (Carboxylic acid) + HO-R' (alcohol) â RCOOR' (Ester ) Esters can be identified by the presence of -COO- linkage in the organic compound.
Esters are derived from carboxylic acids. A carboxylic acid contains the-COOH group, and in an ester the hydrogen in this group is replaced by a hydrocarbon group of some kind. This could be an alkyl group like methyl or ethyl, or one containing a benzene ring like phenyl.A common ester-ethyl ethanoate. The most commonly discussed ester is ethyl ethanoate.nimal and vegetable fats and oils are just big complicated esters. The difference between a fat (like butter) and an oil (like sunflower oil) is simply in the melting points of the mixture of esters they contain. If the melting points are below room temperature, it will be a liquid-an oil.