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		<id>https://www.designingbuildings.co.uk/w/index.php?action=history&amp;feed=atom&amp;title=Soda-lime_glass</id>
		<title>Soda-lime glass - Revision history</title>
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		<updated>2026-05-20T05:05:12Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Soda-lime_glass&amp;diff=282378&amp;oldid=prev</id>
		<title>Designing Buildings at 08:06, 12 August 2024</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Soda-lime_glass&amp;diff=282378&amp;oldid=prev"/>
				<updated>2024-08-12T08:06:03Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 08:06, 12 August 2024&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://historicengland.org.uk/images-books/publications/glassworkingguidelines/ Archaeological Evidence for Glassworking, Guidelines for Recovering, Analysing and Interpreting Evidence], published by Historic England in 2018, suggests that soda&lt;/del&gt;-lime glass&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;: ‘Includes soda-ash and natron glass. Soda-lime &lt;/del&gt;glass is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;typical &lt;/del&gt;of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the Iron Age&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Roman and much &lt;/del&gt;of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the early medieval periods&lt;/del&gt;, and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;also from around the 19th century&lt;/del&gt;.&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;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Soda&lt;/ins&gt;-lime glass&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, also called soda–lime–silica &lt;/ins&gt;glass&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/ins&gt;is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the most common type &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;glass&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;accounting for about 90% &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;manufactured glass products. It is widely used for windows, bottles, jars&lt;/ins&gt;, and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;many other everyday items&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on Designing Buildings &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Wiki &lt;/del&gt;=&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;It is made primarily from three main ingredients:&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Silica (SiO) is the primary component, making up about 70-75% of the glass. It provides the structure and transparency.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Soda (Sodium Oxide, NaO) derived from sodium carbonate (soda ash) lowers the melting point of the silica, making it easier to form the glass.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Lime (Calcium Oxide, CaO) derived from limestone, is added to improve the chemical durability of the glass and prevent it from dissolving in water.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Other minor ingredients, such as alumina (AlO), magnesium oxide (MgO), and sometimes small amounts of other oxides, are added to enhance specific properties like durability, color, and resistance to weathering.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Soda-lime glass is clear and colourless in its pure form but can be tinted with the addition of metal oxides. It is relatively easy to melt and shape, making it ideal for mass production. The raw materials are abundant and inexpensive, making soda-lime glass affordable.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;However, soda-lime glass is not very resistant to thermal shock or sudden changes in temperature, which can cause it to crack or shatter. It also has a relatively low resistance to chemicals and scratches compared to other types of glass, such as borosilicate glass.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;NB [https://historicengland.org.uk/images-books/publications/glassworkingguidelines/ Archaeological Evidence for Glassworking, Guidelines for Recovering, Analysing and Interpreting Evidence], published by Historic England in 2018, suggests that soda-lime glass: ‘Includes soda-ash and natron glass. Soda-lime glass is typical of the Iron Age, Roman and much of the early medieval periods, and also from around the 19th century.’&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on Designing Buildings =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Annealing.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Annealing.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Soda-lime_glass&amp;diff=189527&amp;oldid=prev</id>
		<title>Editor at 18:39, 12 January 2021</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Soda-lime_glass&amp;diff=189527&amp;oldid=prev"/>
				<updated>2021-01-12T18:39:26Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 18:39, 12 January 2021&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 18:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 18:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Stained glass.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Stained glass.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Definitions&lt;/del&gt;]] [[Category:&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;DCN_Definition&lt;/del&gt;]] [[Category:Products_/_components&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]] [[Category:DCN_Product_Knowledge&lt;/del&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;DCN_Definition&lt;/ins&gt;]] [[Category:&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Definitions&lt;/ins&gt;]] [[Category:Products_/_components]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Soda-lime_glass&amp;diff=169047&amp;oldid=prev</id>
		<title>Designing Buildings: Created page with &quot;[https://historicengland.org.uk/images-books/publications/glassworkingguidelines/ Archaeological Evidence for Glassworking, Guidelines for Recovering, Analysing and Interpreting ...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Soda-lime_glass&amp;diff=169047&amp;oldid=prev"/>
				<updated>2020-07-30T11:20:01Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;[https://historicengland.org.uk/images-books/publications/glassworkingguidelines/ Archaeological Evidence for Glassworking, Guidelines for Recovering, Analysing and Interpreting ...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[https://historicengland.org.uk/images-books/publications/glassworkingguidelines/ Archaeological Evidence for Glassworking, Guidelines for Recovering, Analysing and Interpreting Evidence], published by Historic England in 2018, suggests that soda-lime glass: ‘Includes soda-ash and natron glass. Soda-lime glass is typical of the Iron Age, Roman and much of the early medieval periods, and also from around the 19th century.’&lt;br /&gt;
&lt;br /&gt;
= Related articles on Designing Buildings Wiki =&lt;br /&gt;
&lt;br /&gt;
* Annealing.&lt;br /&gt;
* Archaeology.&lt;br /&gt;
* Broad glass.&lt;br /&gt;
* Conservation.&lt;br /&gt;
* Cristallo.&lt;br /&gt;
* Flint glass.&lt;br /&gt;
* Forest glass.&lt;br /&gt;
* Glass.&lt;br /&gt;
* Glass blowing.&lt;br /&gt;
* Historic England.&lt;br /&gt;
* HLLA glass.&lt;br /&gt;
* Lead glass.&lt;br /&gt;
* Natron.&lt;br /&gt;
* Stained glass.&lt;br /&gt;
&lt;br /&gt;
[[Category:Definitions]] [[Category:DCN_Definition]] [[Category:Products_/_components]] [[Category:DCN_Product_Knowledge]]&lt;/div&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

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