Oil Bath is a laboratory heating device used for precise temperature control of reactions or samples. It consists of a container filled with a high temperature oil, such as mineral oil or silicone oil, which acts as a heat transfer medium. The oil bath is heated using a hot plate or an electric heating element, and a thermometer is used for monitoring the temperature. The sample or reaction vessel is immersed into the oil bath, that allows for controlled and even heating. Oil Bath is commonly used in distillation, chemical synthesis, and other applications requiring stable and accurate temperature conditions.