A coil is a spiral condenser, also called a serpentine condenser or Graham condenser.
Its main characteristics are as follows:
Form and function: It is a glass tube wound in a helix (solenoid shape) inside an outer shell. It is designed to serve as a refrigerating instrument, primarily in stills or distillation and reflux rigs in chemistry.
Operating principle: A hot gas or vapor passes through the helical tube, while a refrigerant liquid (water) circulates in the outer shell, around the coil. Indirect contact with the cold liquid causes the gas or vapor to condense.
Material: It is made of glass.
Use: It is used to condense vapors during chemical reactions requiring reflux or to separate components by distillation.
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