{"id":117331,"date":"2022-09-16T10:10:00","date_gmt":"2022-09-16T09:10:00","guid":{"rendered":"https:\/\/material-properties.org\/rodio-e-renio-comparacao-propriedades\/"},"modified":"2022-10-19T13:00:51","modified_gmt":"2022-10-19T12:00:51","slug":"rodio-e-renio-comparacao-propriedades","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/rodio-e-renio-comparacao-propriedades\/","title":{"rendered":"R\u00f3dio e R\u00eanio – Compara\u00e7\u00e3o – Propriedades"},"content":{"rendered":"

Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de r\u00f3dio e r\u00eanio, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica.\u00a0Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos.\u00a0R\u00f3dio vs. R\u00eanio.<\/span><\/em><\/p>\n

\"r\u00f3dio<\/p>\n

\n
<\/span>Comparar R\u00f3dio com outro elemento<\/div>
\n
<\/div>\n

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

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

\"Pal\u00e1dio<\/a><\/p>\n

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

\"R\u00eanio<\/a><\/p>\n

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

\n
<\/span>Comparar R\u00eanio com outro elemento<\/div>
\n
<\/div>\n

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

\"Tungst\u00eanio<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

<\/div>\n
\n

R\u00f3dio e R\u00eanio – Sobre Elementos<\/span><\/h2>\n<\/div><\/div>\n
\n
<\/i><\/div>
\n

R\u00f3dio<\/span><\/h3>\n

O r\u00f3dio \u00e9 um metal de transi\u00e7\u00e3o raro, branco prateado, duro, resistente \u00e0 corros\u00e3o e quimicamente inerte.\u00a0\u00c9 um metal nobre e membro do grupo da platina.<\/span><\/p>\n<\/div>

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

R\u00eanio<\/span><\/h3>\n

O r\u00eanio \u00e9 um metal de transi\u00e7\u00e3o de terceira linha, branco-prateado, pesado, no grupo 7 da tabela peri\u00f3dica.<\/span><\/p>\n<\/div>

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

\n

\"R\u00f3dio<\/p>\n

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

\n

\"R\u00eanio<\/p>\n

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

Fonte: www.luciteria.com<\/span><\/p>\n

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

<\/span><\/p>\n

R\u00f3dio e R\u00eanio – Aplica\u00e7\u00f5es<\/span><\/h2>\n<\/div><\/div>\n
\n
\n
\n

R\u00f3dio<\/span><\/a><\/h3>\n

O principal uso do elemento (aproximadamente 80% da produ\u00e7\u00e3o mundial de r\u00f3dio) \u00e9 como um dos catalisadores nos conversores catal\u00edticos de tr\u00eas vias em autom\u00f3veis.\u00a0Como o metal r\u00f3dio \u00e9 inerte contra a corros\u00e3o e a maioria dos produtos qu\u00edmicos agressivos, e devido \u00e0 sua raridade, o r\u00f3dio \u00e9 geralmente ligado com platina ou pal\u00e1dio e aplicado em revestimentos resistentes \u00e0 corros\u00e3o e de alta temperatura.\u00a0Em reatores nucleares, detectores \u00e0 base de r\u00f3dio s\u00e3o frequentemente usados \u200b\u200bpara medi\u00e7\u00e3o de fluxo de n\u00eautrons no n\u00facleo.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

R\u00eanio<\/span><\/a><\/h3>\n

Mais de 80% do uso global de r\u00eanio est\u00e1 em superligas de alta temperatura para aplica\u00e7\u00f5es de aeronaves, como l\u00e2minas de turbinas e pe\u00e7as de motores.\u00a0Essas ligas cont\u00eam at\u00e9 6% de r\u00eanio, tornando a constru\u00e7\u00e3o de motores a jato o maior uso \u00fanico para o elemento.\u00a0O r\u00eanio \u00e9 adicionado \u00e0s superligas \u00e0 base de n\u00edquel para melhorar a resist\u00eancia \u00e0 flu\u00eancia das ligas.\u00a0A demanda restante \u00e9 principalmente das ind\u00fastrias de refino petroqu\u00edmico.\u00a0Os catalisadores de platina-r\u00eanio que s\u00e3o usados \u200b\u200bprincipalmente em gasolina sem chumbo e de alta octanagem s\u00e3o outra aplica\u00e7\u00e3o importante do r\u00eanio.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

R\u00f3dio e R\u00eanio – Compara\u00e7\u00e3o na Tabela<\/span><\/h2>\n

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

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Elemento<\/span><\/td>\nR\u00f3dio<\/span><\/b><\/td>\nR\u00eanio<\/span><\/b><\/td>\n<\/tr>\n
Densidade<\/span><\/td>\n12,45 g\/cm3<\/sup><\/span><\/strong><\/td>\n21,02 g\/cm3<\/sup><\/span><\/strong><\/td>\n<\/tr>\n
Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/span><\/td>\n950 MPa<\/span><\/strong><\/td>\n1070 MPa<\/span><\/strong><\/td>\n<\/tr>\n
For\u00e7a de rendimento<\/span><\/td>\nN\/D<\/span><\/strong><\/td>\n290 MPa<\/span><\/strong><\/td>\n<\/tr>\n
M\u00f3dulo de elasticidade de Young<\/span><\/td>\n380 GPa<\/span><\/strong><\/td>\n463 GPa<\/span><\/strong><\/td>\n<\/tr>\n
Escala de Mohs<\/span><\/td>\n6<\/span><\/strong><\/td>\n7<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Brinell<\/span><\/td>\n1100 MPa<\/span><\/strong><\/td>\n1400 MPa<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Vickers<\/span><\/td>\n1246 MPa<\/span><\/strong><\/td>\n2500 MPa<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de fus\u00e3o<\/span><\/td>\n1964 \u00b0C<\/span><\/strong><\/td>\n3180 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de ebuli\u00e7\u00e3o<\/span><\/td>\n3695 \u00b0C<\/span><\/strong><\/td>\n5600 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Condutividade t\u00e9rmica<\/span><\/td>\n150 W\/mK<\/span><\/strong><\/td>\n48 W\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Coeficiente de Expans\u00e3o T\u00e9rmica<\/span><\/td>\n8,2 \u00b5m\/mK<\/span><\/strong><\/td>\n6,2 \u00b5m\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Calor espec\u00edfico<\/span><\/td>\n0,242 J\/gK<\/span><\/span><\/strong><\/td>\n0,13 J\/gK<\/span><\/strong><\/td>\n<\/tr>\n
Calor de fus\u00e3o<\/span><\/td>\n21,5 kJ\/mol<\/span><\/strong><\/td>\n33,2 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n
Calor da vaporiza\u00e7\u00e3o<\/span><\/td>\n493 kJ\/mol<\/span><\/span><\/strong><\/td>\n715 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de r\u00f3dio e r\u00eanio, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica.\u00a0Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos.\u00a0R\u00f3dio vs. R\u00eanio. Fonte: 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":"\nR\u00f3dio e R\u00eanio - Compara\u00e7\u00e3o - Propriedades - Material Properties<\/title>\n<meta name=\"description\" content=\"Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de r\u00f3dio e r\u00eanio, dois elementos qu\u00edmicos compar\u00e1veis da tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. R\u00f3dio vs R\u00eanio.\" \/>\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\/pt-br\/rodio-e-renio-comparacao-propriedades\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u00f3dio e R\u00eanio - Compara\u00e7\u00e3o - Propriedades - Material Properties\" \/>\n<meta property=\"og:description\" content=\"Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de r\u00f3dio e r\u00eanio, dois elementos qu\u00edmicos compar\u00e1veis da tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. 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