{"id":114443,"date":"2022-02-07T01:22:43","date_gmt":"2022-02-07T00:22:43","guid":{"rendered":"https:\/\/material-properties.org\/rubidium-et-cesium-comparaison-proprietes\/"},"modified":"2022-03-23T07:26:48","modified_gmt":"2022-03-23T06:26:48","slug":"rubidium-et-cesium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/","title":{"rendered":"Rubidium et C\u00e9sium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du rubidium et du c\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Rubidium contre C\u00e9sium.<\/em><\/p>\n

\"rubidium<\/p>\n

\n
<\/span>Comparer le rubidium avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

\"Strontium<\/a><\/p>\n

\"Iode<\/a><\/p>\n

\"C\u00e9sium<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

\n
<\/span>Comparer le c\u00e9sium avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

\"Chlore<\/a><\/p>\n

\"Rubidium<\/a><\/p>\n

\"Iode<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

<\/div>\n
\n

Rubidium et C\u00e9sium – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Rubidium<\/h3>\n

Le rubidium est un \u00e9l\u00e9ment m\u00e9tallique doux et blanc argent\u00e9 du groupe des m\u00e9taux alcalins, avec une masse atomique de 85,4678.\u00a0Le rubidium \u00e9l\u00e9mentaire est hautement r\u00e9actif, avec des propri\u00e9t\u00e9s similaires \u00e0 celles des autres m\u00e9taux alcalins, y compris une oxydation rapide dans l’air.
\n<\/p><\/div>

<\/div><\/div>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

C\u00e9sium<\/h3>\n

Le c\u00e9sium est un m\u00e9tal alcalin doux et argent\u00e9 avec un point de fusion de 28,5\u00b0C, ce qui en fait l’un des cinq seuls m\u00e9taux \u00e9l\u00e9mentaires liquides \u00e0 ou pr\u00e8s de la temp\u00e9rature ambiante. Le c\u00e9sium a des propri\u00e9t\u00e9s physiques et chimiques similaires \u00e0 celles du rubidium et du potassium.<\/p>\n<\/div>

<\/div><\/div>\n<\/div><\/div>\n
<\/div>\n
\n

\"Strontium<\/p>\n<\/div><\/div>\n

\n

\"C\u00e9sium<\/p>\n

<\/p><\/div><\/div>\n

Source : www.luciteria.com<\/p>\n

<\/div>\n
\n

Rubidium et C\u00e9sium – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Rubidium<\/a><\/h3>\n

La propri\u00e9t\u00e9 photo\u00e9missive du rubidium, qui est celle d’une surface \u00e9mettant des \u00e9lectrons libres lorsqu’elle est touch\u00e9e par un rayonnement \u00e9lectromagn\u00e9tique, permet les applications suivantes.\u00a0Une surface photo\u00e9missive rubidium-tellure est utilis\u00e9e dans les cellules photo\u00e9lectriques, qui sont incorpor\u00e9es dans une vari\u00e9t\u00e9 de dispositifs \u00e9lectroniques de d\u00e9tection et d’activation.\u00a0Il est sensible \u00e0 un large spectre de rayonnement allant de l’ultraviolet moyen au visible jusqu’au proche infrarouge.\u00a0Un rev\u00eatement rubidium-c\u00e9sium-antimoine est couramment appliqu\u00e9 sur les photocathodes des tubes photomultiplicateurs.\u00a0Le rubidium-82 est utilis\u00e9 pour la tomographie par \u00e9mission de positrons.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

C\u00e9sium<\/a><\/h3>\n

La plus grande utilisation actuelle de c\u00e9sium non radioactif est dans les fluides de forage au formiate de c\u00e9sium pour l’industrie p\u00e9troli\u00e8re extractive.\u00a0Ils sont \u00e9galement utilis\u00e9s pour fabriquer du verre optique sp\u00e9cial, comme promoteur de catalyseur, dans des tubes \u00e0 vide et dans des \u00e9quipements de surveillance des rayonnements.\u00a0L’une de ses utilisations les plus importantes est dans \u00abl’horloge au c\u00e9sium\u00bb (horloge atomique).\u00a0Ces horloges sont une partie essentielle des r\u00e9seaux Internet et de t\u00e9l\u00e9phonie mobile, ainsi que des satellites du syst\u00e8me de positionnement global (GPS).\u00a0Le c\u00e9sium-137 est un radio-isotope couramment utilis\u00e9 comme \u00e9metteur gamma dans les applications industrielles.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Rubidium et c\u00e9sium – Comparaison dans le tableau<\/h2>\n<\/div><\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00c9l\u00e9ment<\/td>\nRubidium<\/b><\/td>\nC\u00e9sium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n1,532 g\/cm3<\/strong><\/td>\n1,879g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n2,4 GPa<\/strong><\/td>\n1,7 GPa<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\n0,3<\/strong><\/td>\n0,2<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\n0,216 MPa<\/strong><\/td>\n0,14 MPa<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n39,31 \u00b0C<\/strong><\/td>\n28,4 \u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n688\u00a0\u00b0C<\/strong><\/td>\n669\u00a0\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n58,2 W\/mK<\/strong><\/td>\n36W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n90 \u00b5m\/mK<\/strong><\/td>\n97 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,363 J\/g\u00b7K<\/span><\/strong><\/td>\n0,24 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n2,192 kJ\/mole<\/strong><\/td>\n2,092 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n72,216 kJ\/mol<\/span><\/strong><\/td>\n67,74 kJ\/mole<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du rubidium et du c\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Rubidium contre C\u00e9sium. Source : www.luciteria.com<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"yoast_head":"\nRubidium et C\u00e9sium - Comparaison - Propri\u00e9t\u00e9s - Material Properties<\/title>\n<meta name=\"description\" content=\"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du rubidium et du c\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Rubidium contre C\u00e9sium.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rubidium et C\u00e9sium - Comparaison - Propri\u00e9t\u00e9s - Material Properties\" \/>\n<meta property=\"og:description\" content=\"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du rubidium et du c\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Rubidium contre C\u00e9sium.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/\" \/>\n<meta property=\"og:site_name\" content=\"Material Properties\" \/>\n<meta property=\"article:published_time\" content=\"2022-02-07T00:22:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-03-23T06:26:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/rubidium-and-caesium-comparison.png\" \/>\n<meta name=\"author\" content=\"Nick Connor\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/\",\"url\":\"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/\",\"name\":\"Rubidium et C\u00e9sium - Comparaison - Propri\u00e9t\u00e9s - Material Properties\",\"isPartOf\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#website\"},\"datePublished\":\"2022-02-07T00:22:43+00:00\",\"dateModified\":\"2022-03-23T06:26:48+00:00\",\"author\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du rubidium et du c\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Rubidium contre C\u00e9sium.\",\"breadcrumb\":{\"@id\":\"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\u016f\",\"item\":\"https:\/\/material-properties.org\/fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Rubidium et C\u00e9sium – Comparaison – Propri\u00e9t\u00e9s\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/material-properties.org\/fr\/#website\",\"url\":\"https:\/\/material-properties.org\/fr\/\",\"name\":\"Material Properties\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/material-properties.org\/fr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"},\"url\":\"https:\/\/material-properties.org\/fr\/author\/matan\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Rubidium et C\u00e9sium - Comparaison - Propri\u00e9t\u00e9s - Material Properties","description":"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du rubidium et du c\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Rubidium contre C\u00e9sium.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/","og_locale":"fr_FR","og_type":"article","og_title":"Rubidium et C\u00e9sium - Comparaison - Propri\u00e9t\u00e9s - Material Properties","og_description":"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du rubidium et du c\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Rubidium contre C\u00e9sium.","og_url":"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/","og_site_name":"Material Properties","article_published_time":"2022-02-07T00:22:43+00:00","article_modified_time":"2022-03-23T06:26:48+00:00","og_image":[{"url":"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/rubidium-and-caesium-comparison.png"}],"author":"Nick Connor","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Nick Connor","Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/","url":"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/","name":"Rubidium et C\u00e9sium - Comparaison - Propri\u00e9t\u00e9s - Material Properties","isPartOf":{"@id":"https:\/\/material-properties.org\/fr\/#website"},"datePublished":"2022-02-07T00:22:43+00:00","dateModified":"2022-03-23T06:26:48+00:00","author":{"@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb"},"description":"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du rubidium et du c\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Rubidium contre C\u00e9sium.","breadcrumb":{"@id":"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/material-properties.org\/fr\/rubidium-et-cesium-comparaison-proprietes\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom\u016f","item":"https:\/\/material-properties.org\/fr\/"},{"@type":"ListItem","position":2,"name":"Rubidium et C\u00e9sium – Comparaison – Propri\u00e9t\u00e9s"}]},{"@type":"WebSite","@id":"https:\/\/material-properties.org\/fr\/#website","url":"https:\/\/material-properties.org\/fr\/","name":"Material Properties","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/material-properties.org\/fr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb","name":"Nick Connor","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g","caption":"Nick Connor"},"url":"https:\/\/material-properties.org\/fr\/author\/matan\/"}]}},"_links":{"self":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts\/114443"}],"collection":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/comments?post=114443"}],"version-history":[{"count":0,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts\/114443\/revisions"}],"wp:attachment":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/media?parent=114443"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/categories?post=114443"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/tags?post=114443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}