An Oil Bath is a laboratory device used to uniformly heat a sample to a high temperature, typically above the boiling point of water (100 ° C). Unlike water baths that are limited by the boiling point of water, oil baths can operate at higher temperatures because oil has a higher boiling point and more stable thermal properties.

The choice of oil depends on the required temperature range and chemical compatibility with the sample. Commonly used oils include silicone oil, mineral oil, and vegetable oil, each with different temperature characteristics.

Special attention should be paid to using high-temperature oil to avoid burns, leaks, and potential fire hazards, as the temperature is higher than that of a water bath. Appropriate safety measures, such as using heat-resistant gloves and working in well ventilated areas, are essential.