Synthesis of high purity fluorides by wet chemistry
Identifieur interne : 00DB61 ( Main/Curation ); précédent : 00DB60; suivant : 00DB62Synthesis of high purity fluorides by wet chemistry
Auteurs : M. Poulain [France] ; R. Lebullenger ; M. SaadSource :
- Journal of non-crystalline solids [ 0022-3093 ] ; 1992.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Déshydratation.
English descriptors
Abstract
The synthesis of high purity for the preparation of optical glasses requires that the residual concentration in transition metals and anionic oxygen is very low. Various synthesis processes in aqueous solutions have been investigated. Purification steps may be included in those processes. Dehydration conditions depend on cationic nature. ZrF4 and AlF3 require fluorinating atmosphere while alkali and earth alkali cations are not hydrolyzed when the temperature increases
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Pascal:92-0194807Le document en format XML
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<author><name sortKey="Poulain, M" sort="Poulain, M" uniqKey="Poulain M" first="M." last="Poulain">M. Poulain</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Univ. Rennes-Beaulieu, cent. etude matériaux avancés, lab. chimie minérale</s1>
<s2>Rennes 35042</s2>
<s3>FRA</s3>
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<country>France</country>
<placeName><region type="region" nuts="2">Région Bretagne</region>
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<author><name sortKey="Lebullenger, R" sort="Lebullenger, R" uniqKey="Lebullenger R" first="R." last="Lebullenger">R. Lebullenger</name>
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<author><name sortKey="Saad, M" sort="Saad, M" uniqKey="Saad M" first="M." last="Saad">M. Saad</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Synthesis of high purity fluorides by wet chemistry</title>
<author><name sortKey="Poulain, M" sort="Poulain, M" uniqKey="Poulain M" first="M." last="Poulain">M. Poulain</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Univ. Rennes-Beaulieu, cent. etude matériaux avancés, lab. chimie minérale</s1>
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<author><name sortKey="Saad, M" sort="Saad, M" uniqKey="Saad M" first="M." last="Saad">M. Saad</name>
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<series><title level="j" type="main">Journal of non-crystalline solids</title>
<title level="j" type="abbreviated">J. non-cryst. solids</title>
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<imprint><date when="1992">1992</date>
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<seriesStmt><title level="j" type="main">Journal of non-crystalline solids</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aqueous solution</term>
<term>Dehydration</term>
<term>Metal Fluorides</term>
<term>Preparation</term>
<term>Purification</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Métal Fluorure</term>
<term>Préparation</term>
<term>Purification</term>
<term>Solution aqueuse</term>
<term>Déshydratation</term>
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<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Déshydratation</term>
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<front><div type="abstract" xml:lang="en">The synthesis of high purity for the preparation of optical glasses requires that the residual concentration in transition metals and anionic oxygen is very low. Various synthesis processes in aqueous solutions have been investigated. Purification steps may be included in those processes. Dehydration conditions depend on cationic nature. ZrF<sub>4</sub>
and AlF<sub>3</sub>
require fluorinating atmosphere while alkali and earth alkali cations are not hydrolyzed when the temperature increases</div>
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