<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>P. B. Barton Jr.</dc:creator>
  <dc:date>1969</dc:date>
  <dc:description>&lt;div id="abstracts" class="Abstracts u-font-serif"&gt;&lt;div id="aep-abstract-id3" class="abstract author"&gt;&lt;div id="aep-abstract-sec-id4"&gt;&lt;p&gt;The results of&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="small-caps"&gt;Toulmin&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;and&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="small-caps"&gt;Barton&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;(1964) for the Fe-S system have been combined with a series of new measurements on As-bearing assemblages in the 500°–850°C temperature range to derive data on the free energies, enthalpies, and entropies of formation for arsenopyrite, loellingite, orpiment, realgar, FeAs, and Fe&lt;sub&gt;2&lt;/sub&gt;As. The enthalpies and free energies of formation of orpiment and realgar are only approximately one-half as large as indicated in recent compilations of thermochemical data (&lt;span class="small-caps"&gt;Wagman&lt;/span&gt;&lt;i&gt;et al&lt;/i&gt;., 1965). Data are also presented for the covariation of activity of S&lt;sub&gt;2&lt;/sub&gt;(g) with temperature and composition of the sulfur-arsenic liquid.&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;ul id="issue-navigation" class="issue-navigation u-margin-s-bottom u-bg-grey1"&gt;&lt;/ul&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/0016-7037(69)90031-3</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>Thermochemical study of the system Fe-As-S</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>