<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0187-893X</journal-id>
<journal-title><![CDATA[Educación química]]></journal-title>
<abbrev-journal-title><![CDATA[Educ. quím]]></abbrev-journal-title>
<issn>0187-893X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Química]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-893X2021000300095</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2021.3.76754</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Uso de un potenciostato de fuente abierta de bajo costo para estudios de inhibición de corrosión de acero: determinación de la velocidad de corrosión]]></article-title>
<article-title xml:lang="en"><![CDATA[Using a Low Cost Open Source Potentiostat for Corrosion Inhibition Studies of Steel: Determination of Corrosion Rate]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alfaro]]></surname>
<given-names><![CDATA[Marco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alfaro]]></surname>
<given-names><![CDATA[Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerra]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de La Serena Campus Andrés Bello Facultad de Ciencias]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de La Serena Instituto de Investigación Multidisciplinario en Ciencia y Tecnología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de La Serena Facultad de Ciencias Departamento de Química]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Centro de Investigación CENBIOEL  ]]></institution>
<addr-line><![CDATA[La Serena ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad de La Serena Departamento de Ingeniería en Obras Civiles ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>32</volume>
<numero>3</numero>
<fpage>95</fpage>
<lpage>116</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2021000300095&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2021000300095&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2021000300095&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Integrar conocimientos es la tarea fundamental de la educación química y es en este contexto en el cual la investigación en inhibición de corrosión de acero nos brinda la oportunidad de llevarlo a la práctica. Esto permite integrar conocimientos de cinética electroquímica con química orgánica y química analítica instrumental vía el uso de un potenciostato de fuente abierta de bajo costo y su utilización en el estudio de las propiedades anticorrosivas del 1-fenil-H-tetrazol-5-tiol. Esta experiencia le permitirá al estudiante determinar la velocidad de corrosión de acero al carbono SAE 1020 en agua de mar simulada aireada, esto es una solución de NaCl al 3,0 % en peso saturada de oxígeno O2 en presencia y ausencia de 1-fenil-H-tetrazol-5-tiol en dos concentraciones en una celda electroquímica estándar de 3 electrodos en un rango entre -0,2 a -0,7 V vs. ENH.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Integrating knowledge is the fundamental task of chemistry education and it is in this context that research in steel corrosion inhibition gives us the opportunity to put it into practice. This allows the integration of knowledge of electrochemical kinetics with organic chemistry and instrumental analytical chemistry via the use of a low-cost open source potentiostat and its use in the study of the anticorrosive properties of 1-phenyl-H-tetrazole-5-thiol. This experience will allow the student to determine the corrosion rate of SAE 1020 carbon steel in aerated simulated seawater, this is a NaCl solution at 3.0% by weight saturated with oxygen O2 in the presence and absence of 1-phenyl-H- Tetrazole-5-thiol in two concentrations in a standard 3-electrode electrochemical cell in a range of -0.2 to -0.7 V vs. ENH.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Fuente abierta]]></kwd>
<kwd lng="es"><![CDATA[Curvas de polarización]]></kwd>
<kwd lng="es"><![CDATA[Acero al carbono]]></kwd>
<kwd lng="es"><![CDATA[Inhibidor de corrosión]]></kwd>
<kwd lng="es"><![CDATA[1-fenil-H-tetrazol-5-tiol]]></kwd>
<kwd lng="en"><![CDATA[Polarization curves]]></kwd>
<kwd lng="en"><![CDATA[Carbon Steel]]></kwd>
<kwd lng="en"><![CDATA[Corrosion inhibitor]]></kwd>
<kwd lng="en"><![CDATA[1-phenyl-H-tetrazole-5-thiol]]></kwd>
</kwd-group>
</article-meta>
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