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	<id>https://keystagewiki.com/index.php?action=history&amp;feed=atom&amp;title=Bromothymol_Blue</id>
	<title>Bromothymol Blue - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://keystagewiki.com/index.php?action=history&amp;feed=atom&amp;title=Bromothymol_Blue"/>
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	<updated>2026-06-19T23:17:30Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.32.1</generator>
	<entry>
		<id>https://keystagewiki.com/index.php?title=Bromothymol_Blue&amp;diff=4334&amp;oldid=prev</id>
		<title>NRJC at 10:29, 29 September 2018</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Bromothymol_Blue&amp;diff=4334&amp;oldid=prev"/>
		<updated>2018-09-29T10:29:50Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 10:29, 29 September 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l4&quot; &gt;Line 4:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===About Bromothymol Blue===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===About Bromothymol Blue===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: [[Bromothymol Blue]] &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;is a &lt;/del&gt;[[&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;transparent&lt;/del&gt;]] &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;without colour &lt;/del&gt;when &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;it is in a [[Neutral (Chemistry)|neutral]] [[&lt;/del&gt;solution&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]]&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: [[Bromothymol Blue]] &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;slightly &lt;/ins&gt;[[&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;acid&lt;/ins&gt;]]&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;ic and is orangey-yellow &lt;/ins&gt;when &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;not added to another &lt;/ins&gt;solution.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: [[Bromothymol Blue]] changes colour quickly between [[pH]] &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;7 &lt;/del&gt;and 8 to turn &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;pinky purple &lt;/del&gt;at [[pH]] 8 and beyond.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: [[Bromothymol Blue]] changes colour quickly between [[pH]] &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;6 &lt;/ins&gt;and 8 to turn &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;from orange, through green to blue colour &lt;/ins&gt;at [[pH]] 8 and beyond.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{| class=&amp;quot;wikitable&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{| class=&amp;quot;wikitable&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|+ Bromothymol Blue pH scale.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|+ Bromothymol Blue pH scale.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>NRJC</name></author>
		
	</entry>
	<entry>
		<id>https://keystagewiki.com/index.php?title=Bromothymol_Blue&amp;diff=4333&amp;oldid=prev</id>
		<title>NRJC: Created page with &quot;==Key Stage 3== ===Meaning=== Bromothymol Blue is an indicator dye that changes colour depending on the pH of a solution.  ===About B...&quot;</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Bromothymol_Blue&amp;diff=4333&amp;oldid=prev"/>
		<updated>2018-09-29T10:27:36Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;==Key Stage 3== ===Meaning=== &lt;a href=&quot;/index.php/Bromothymol_Blue&quot; title=&quot;Bromothymol Blue&quot;&gt;Bromothymol Blue&lt;/a&gt; is an &lt;a href=&quot;/index.php/Indicator_(Chemistry)&quot; title=&quot;Indicator (Chemistry)&quot;&gt;indicator&lt;/a&gt; &lt;a href=&quot;/index.php/Dye&quot; title=&quot;Dye&quot;&gt;dye&lt;/a&gt; that changes colour depending on the &lt;a href=&quot;/index.php/PH&quot; title=&quot;PH&quot;&gt;pH&lt;/a&gt; of a &lt;a href=&quot;/index.php/Solution&quot; title=&quot;Solution&quot;&gt;solution&lt;/a&gt;.  ===About B...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Key Stage 3==&lt;br /&gt;
===Meaning===&lt;br /&gt;
[[Bromothymol Blue]] is an [[Indicator (Chemistry)|indicator]] [[dye]] that changes colour depending on the [[pH]] of a [[solution]].&lt;br /&gt;
&lt;br /&gt;
===About Bromothymol Blue===&lt;br /&gt;
: [[Bromothymol Blue]] is a [[transparent]] without colour when it is in a [[Neutral (Chemistry)|neutral]] [[solution]].&lt;br /&gt;
: [[Bromothymol Blue]] changes colour quickly between [[pH]] 7 and 8 to turn pinky purple at [[pH]] 8 and beyond.&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|+ Bromothymol Blue pH scale.&lt;br /&gt;
|-&lt;br /&gt;
|[[File:BromothymolBluepHScale.png|center|600px]]&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>NRJC</name></author>
		
	</entry>
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