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Water baths are preferred heat sources for heating flammable chemicals, as their lack of open flame prevents [[Combustion|ignition]].<ref>{{Cite book|title = Prudent Practices in the Laboratory: Handling and Disposal of Chemicals|publisher = National Academy Press, Washington, D.C.|year = 1995|isbn = 978-0-309-05229-0|pages = 95|url = http://www.nap.edu/openbook.php?record_id=4911&page=95|doi = 10.17226/4911}}</ref> Different types of water baths are used depending on application. For all water baths, it can be used up to 99.9 °C.<ref>{{Cite web|url = https://www.thermoscientific.com/content/dam/tfs/LPG/LED/LED%20Documents/Catalogs%20&%20Brochures/Temperature%20Control/Water%20Baths/Precision-Lab-Line-Water-Baths-Brochure-BRTCPRECLABLINE-EN.pdf|title = Thermo Scientific Precision and Lab-Line Water Baths|website = thermoscientific.com}}</ref><ref>{{Cite web|url = http://www.labwit.com.au/files/General-Water-Baths-1.pdf|title = General Water Baths|website = labwit.com|access-date = 2015-06-14|archive-date = 2018-05-09|archive-url = https://web.archive.org/web/20180509013836/http://www.labwit.com.au/files/General-Water-Baths-1.pdf|url-status = dead}}</ref>
When the required temperature is above 100 °C, alternative methods such as oil bath, [[silicone oil]] bath or sand bath may be used.<ref name=":0">{{Cite web|url = http://pubs.acs.org/subscribe/archive/tcaw/13/i10/pdf/1004prodprofile.pdf|title = Baths and Circulators|date = October 2004|website = pubs.acs.org}}</ref>
== Precautions ==
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