https://wikimd.org/index.php?action=history&feed=atom&title=Methyl_orangeMethyl orange - Revision history2026-04-25T20:18:28ZRevision history for this page on the wikiMediaWiki 1.44.2https://wikimd.org/index.php?title=Methyl_orange&diff=5806281&oldid=prevPrab: CSV import2024-05-22T15:46:08Z<p>CSV import</p>
<p><b>New page</b></p><div>[[File:Methyl-orange-2D-skeletal.png|thumb|Methyl-orange-2D-skeletal.png]] '''Methyl orange''' is a [[pH indicator]] frequently used in [[titration]]s due to its clear and distinct color change. It is a weak acid that dissociates in water to form orange neutral molecules and red anions. <br />
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==Chemical Properties==<br />
Methyl orange has the chemical formula C_14H_14N_3NaO_3S. It is an [[azo dye]], which means it contains the functional group R-N=N-R', where R and R' can be either aryl or alkyl. The structure of methyl orange includes a benzene ring, which is a common feature in many [[organic compounds]].<br />
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==Color Change==<br />
Methyl orange changes color at a pH of 3.1 to 4.4. In acidic conditions, it appears red, while in alkaline conditions, it turns yellow. This makes it particularly useful for titrations involving strong acids and weak bases.<br />
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==Applications==<br />
Methyl orange is widely used in [[analytical chemistry]] for titrations. It is also used in the textile industry as a dye. In laboratories, it serves as a pH indicator to determine the acidity or basicity of a solution.<br />
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==Safety and Handling==<br />
Methyl orange should be handled with care. It can be harmful if ingested or inhaled and may cause skin and eye irritation. Proper [[laboratory safety]] protocols should be followed when handling this chemical.<br />
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==See Also==<br />
* [[pH indicator]]<br />
* [[Titration]]<br />
* [[Azo dye]]<br />
* [[Analytical chemistry]]<br />
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==References==<br />
{{Reflist}}<br />
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==External Links==<br />
{{Commons category|Methyl orange}}<br />
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[[Category:Chemical compounds]]<br />
[[Category:PH indicators]]<br />
[[Category:Azo dyes]]<br />
[[Category:Analytical chemistry]]<br />
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