Heated bath

This article is about a laboratory equipment. For other uses, see Water bath.
Heated bath - schema
1 - Heated substance
2 - Heating medium
3 - Laboratory flask
4 - Bowl
5 - Gas burner

A heated bath is used in the laboratory to allow a chemical reaction to occur at an elevated temperature.

The heated bath is a fluid placed in an open (metal) pot. Water and silicone oil are the most commonly used fluids. A water bath is used for temperatures up to 100 °C. An oil bath is employed for temperatures over 100 °C.

The heated bath is heated on a hot plate, or with a bunsen burner. The reaction chamber (florence flask, erlenmeyer flask, beaker) is immersed in the heated bath. A thermometer is usually kept in the fluid to monitor the temperature.

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