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TIN

Miscellaneous

• Family: None
• Region: None
• Mined At: Unspecified
• Raw Mineral: Yes
• Generic: No

Notes

(Richard Willis)

Element, with the symbol Sn and atomic weight of 118.70 Discomposes at 1500ºC Calcinates at 1040ºC Water insoluble
The oxide SnO₂ is water insoluble but discomposes over 1100ºC. Tin is a powerful whitening/opacifying agent for most any glaze at most any temp., and usually the best results are obtained when introduced as an calcinated “ash” blend of tin and the principal flux (lead, boron, sodium, etc.).
Probably the most popularly used of the opacifiers, since it works well (doesn’t bleed, coagulate, or otherwise interfere) with most any colorant as well as any flux. see colorants and opacifiers
commonly used forms
— oxide (“cassiterite”, “tinstone”, etc.) SnO₂
— chlorurium hydrate (“stannous”) SnCl₂, 2H₂O
— chlorurium anhydrate (“stannic”) SnCl₂

Authors

• Richard Willis (Owner)

XML

<?xml version="1.0" encoding="UTF-8"?>
<material name="TIN" descrip="" generic="0" rawmineral="1" searchkey="" loi="0.00">
<notes>
<note>Element, with the symbol Sn and atomic weight of 118.70 Discomposes at 1500&amp;ordm;C Calcinates at 1040&amp;ordm;C Water insoluble&lt;BR&gt;
The oxide SnO&lt;FONT SIZE=2&gt;&lt;SUB&gt;2&lt;/SUB&gt;&lt;/FONT&gt; is water insoluble but discomposes over 1100&amp;ordm;C. Tin is a powerful whitening/opacifying agent for most any glaze at most any temp., and usually the best results are obtained when introduced as an calcinated &amp;#147;ash&amp;#148; blend of tin and the principal flux (lead, boron, sodium, etc.).&lt;BR&gt;
Probably the most popularly used of the opacifiers, since it works well (doesn&amp;#146;t bleed, coagulate, or otherwise interfere) with most any colorant as well as any flux. &lt;FONT SIZE=2&gt;see &lt;B&gt;&lt;I&gt;colorants&lt;/I&gt;&lt;/B&gt; and &lt;B&gt;&lt;I&gt;opacifiers&lt;/I&gt;&lt;/B&gt;&lt;/FONT&gt;&lt;B&gt;&lt;I&gt;&lt;BR&gt;
&lt;/I&gt;commonly used forms&lt;BR&gt;
&lt;/B&gt;&amp;#151; oxide (&amp;#147;cassiterite&amp;#148;, &amp;#147;tinstone&amp;#148;, etc.) SnO&lt;FONT SIZE=2&gt;&lt;SUB&gt;2&lt;/SUB&gt;&lt;/FONT&gt;&lt;BR&gt;
&amp;#151; chlorurium hydrate (&amp;#147;stannous&amp;#148;) SnCl&lt;FONT SIZE=2&gt;&lt;SUB&gt;2&lt;/SUB&gt;&lt;/FONT&gt;, 2H&lt;FONT SIZE=2&gt;&lt;SUB&gt;2&lt;/SUB&gt;&lt;/FONT&gt;O&lt;BR&gt;
&amp;#151; chlorurium anhydrate (&amp;#147;stannic&amp;#148;) SnCl&lt;FONT SIZE=2&gt;&lt;SUB&gt;2&lt;/SUB&gt;&lt;/FONT&gt;&lt;BR&gt;

</note>
</notes>
</material>

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