2-methylbutane (isopentane) - Revision history

Jakob Suckale: illustration

2011-03-29T12:34:12Z

illustration

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		+	[[Image:Methylbutane (isopentane).png\|thumb\|200px\|right\|2-methyl-butane (aka isopentane) chemical structure]]
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	== Description & warning ==		== Description & warning ==

2011-03-11T17:33:42Z

2011-03-11T17:32:05Z

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	Methylbutane is used in the lab as an intermediate cooling medium. A setup could be: a tissue sample immersed in methylbutane, itself immersed in liquid nitrogen. This type of cooling is more efficient than direct contact of the sample with liquid nitrogen (-196°C) which evaporates upon contact with a warm object. Less heat is transmitted from the sample to the gaseous nitrogen than from the sample to the liquid methylbutane (-160°C).		Methylbutane is used in the lab as an intermediate cooling medium. A setup could be: a tissue sample immersed in methylbutane, itself immersed in liquid nitrogen. This type of cooling is more efficient than direct contact of the sample with liquid nitrogen (-196°C) which evaporates upon contact with a warm object. Less heat is transmitted from the sample to the gaseous nitrogen than from the sample to the liquid methylbutane (-160°C).
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		+	Biological samples flash frozen for example with a combination of liquid nitrogen and methylbutane can then be used for storage, cryosection, etc.

	== See also ==		== See also ==

2011-03-11T17:30:53Z

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	== Lab use ==		== Lab use ==

-	Methylbutane is used in the lab as an intermediate cooling medium. A setup could be: a tissue sample immersed in methylbutane, itself immersed in liquid nitrogen. This type of cooling is more efficient than direct contact of the sample with liquid nitrogen (-196°C) which evaporates upon contact with a warm object. Less heat is transmitted from the sample to the gaseous nitrogen than from the sample to the liquid methylbutane.	+	Methylbutane is used in the lab as an intermediate cooling medium. A setup could be: a tissue sample immersed in methylbutane, itself immersed in liquid nitrogen. This type of cooling is more efficient than direct contact of the sample with liquid nitrogen (-196°C) which evaporates upon contact with a warm object. Less heat is transmitted from the sample to the gaseous nitrogen than from the sample to the liquid methylbutane (-160°C).

	== See also ==		== See also ==

2011-03-11T17:30:11Z

2011-03-11T17:28:14Z

Lab use

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	== Lab use ==		== Lab use ==

		+	Methylbutane is used in the lab as an intermediate cooling medium. A setup could be: a tissue sample immersed in methylbutane, itself immersed in liquid nitrogen. This type of cooling is more efficient than direct contact of the sample with liquid nitrogen (-196°C) which evaporates upon contact with a warm object. Less heat is transmitted from the sample to the gaseous nitrogen than from the sample to the liquid methylbutane.

	== See also ==		== See also ==

2011-03-11T17:21:10Z

Description & warning

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	== Description & warning ==		== Description & warning ==

		+	2-methylbutane (aka methylbutane or isopentane) is a hydrophobic liquid with a boiling point at just 28°C. Since it is also highly flammable, care has to be taken that it is used under the hood away from fire to avoid accident.

	== Lab use ==		== Lab use ==

2011-03-11T17:18:25Z

2011-03-11T17:17:41Z

2011-03-11T17:16:02Z

*** page created ***

New page

== Description ==

== Lab use ==

== See also ==

←Older revision		Revision as of 17:33, 11 March 2011
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	== See also ==		== See also ==
-		+	* [http://main.uab.edu/Sites/ComparativePathology/histopathology/tissuesubmission/cryosectioning/ Cryosectioning protocol including methylbutane freezing]
	* [http://en.wikipedia.org/wiki/Isopentane Wikipedia: Ispentane]		* [http://en.wikipedia.org/wiki/Isopentane Wikipedia: Ispentane]
	* [http://en.wikipedia.org/wiki/Liquid_nitrogen Wikipedia: Liquid nitrogen]		* [http://en.wikipedia.org/wiki/Liquid_nitrogen Wikipedia: Liquid nitrogen]

←Older revision		Revision as of 17:30, 11 March 2011
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	== See also ==		== See also ==

		+	* [http://en.wikipedia.org/wiki/Isopentane Wikipedia: Ispentane]
		+	* [http://en.wikipedia.org/wiki/Liquid_nitrogen Wikipedia: Liquid nitrogen]

	[[Category:Chemical]]		[[Category:Chemical]]
	[[Category:Material]]		[[Category:Material]]