{"id":118179,"date":"2022-10-25T12:39:07","date_gmt":"2022-10-25T11:39:07","guid":{"rendered":"https:\/\/material-properties.org\/fluor-e-calcio-comparacao-propriedades\/"},"modified":"2022-10-25T12:42:53","modified_gmt":"2022-10-25T11:42:53","slug":"fluor-e-calcio-comparacao-propriedades","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/fluor-e-calcio-comparacao-propriedades\/","title":{"rendered":"Fl\u00faor e C\u00e1lcio – Compara\u00e7\u00e3o – Propriedades"},"content":{"rendered":"

Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas do fl\u00faor e do c\u00e1lcio, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. Fl\u00faor vs. C\u00e1lcio.<\/span><\/em><\/p>\n

\"fl\u00faor<\/p>\n

\n
<\/span>Comparar Fl\u00faor com outro elemento<\/div>
\n
<\/div>\n

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

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

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

\"C\u00e1lcio<\/a><\/p>\n

\"Alum\u00ednio<\/a><\/p>\n

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

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

\n
<\/span>Compare C\u00e1lcio com outro elemento<\/div>
\n
<\/div>\n

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

\"L\u00edtio<\/a><\/p>\n

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

\"Fl\u00faor<\/a><\/p>\n

\"S\u00f3dio<\/a><\/p>\n

\"Magn\u00e9sio<\/a><\/p>\n

\"F\u00f3sforo<\/a><\/p>\n

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

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

\"Pot\u00e1ssio<\/a><\/p>\n

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

<\/div>\n
\n

Fl\u00faor e C\u00e1lcio – Sobre os Elementos<\/span><\/h2>\n<\/div><\/div>\n
\n
<\/i><\/div>
\n

Fl\u00faor<\/span><\/h3>\n

O fl\u00faor \u00e9 o halog\u00eanio mais leve e existe como um g\u00e1s diat\u00f4mico amarelo p\u00e1lido altamente t\u00f3xico em condi\u00e7\u00f5es padr\u00e3o.\u00a0Como o elemento mais eletronegativo, \u00e9 extremamente reativo: quase todos os outros elementos, incluindo alguns gases nobres, formam compostos com fl\u00faor.<\/p>\n<\/div>

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

C\u00e1lcio<\/span><\/h3>\n

O c\u00e1lcio \u00e9 um metal alcalino-terroso, \u00e9 um metal amarelo p\u00e1lido reativo que forma uma camada escura de \u00f3xido-nitreto quando exposto ao ar.\u00a0Suas propriedades f\u00edsicas e qu\u00edmicas s\u00e3o mais semelhantes aos seus hom\u00f3logos mais pesados, estr\u00f4ncio e b\u00e1rio.\u00a0\u00c9 o quinto elemento mais abundante na crosta terrestre e o terceiro metal mais abundante, depois do ferro e do alum\u00ednio.<\/span><\/p>\n<\/div>

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

\n

\"Fl\u00faor<\/p>\n

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

\n

\"C\u00e1lcio<\/p>\n

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

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

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

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

Fl\u00faor e C\u00e1lcio – Aplica\u00e7\u00f5es<\/span><\/h2>\n<\/div><\/div>\n
\n
\n
\n

Fl\u00faor<\/span><\/a><\/h3>\n

Devido \u00e0 despesa de refinar fl\u00faor puro, a maioria das aplica\u00e7\u00f5es comerciais usa compostos de fl\u00faor, com cerca de metade da fluorita extra\u00edda usada na fabrica\u00e7\u00e3o de a\u00e7o.\u00a0O restante da fluorita \u00e9 convertido em fluoreto de hidrog\u00eanio corrosivo a caminho de v\u00e1rios fluoretos org\u00e2nicos, ou em criolita, que desempenha um papel fundamental no refino de alum\u00ednio.\u00a0A maioria dos processos comerciais de enriquecimento de ur\u00e2nio (difus\u00e3o gasosa e o m\u00e9todo de centrifuga\u00e7\u00e3o a g\u00e1s) exigem que o ur\u00e2nio esteja na forma gasosa, portanto, o concentrado de \u00f3xido de ur\u00e2nio deve primeiro ser convertido em hexafluoreto de ur\u00e2nio, que \u00e9 um g\u00e1s a temperaturas relativamente baixas.\u00a0Mol\u00e9culas contendo uma liga\u00e7\u00e3o carbono-fl\u00faor geralmente t\u00eam estabilidade qu\u00edmica e t\u00e9rmica muito alta;\u00a0seus principais usos s\u00e3o como refrigerantes, isolantes el\u00e9tricos e utens\u00edlios de cozinha, o \u00faltimo como PTFE (Teflon).<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

C\u00e1lcio<\/span><\/a><\/h3>\n

O maior uso do c\u00e1lcio met\u00e1lico \u00e9 na siderurgia, devido \u00e0 sua forte afinidade qu\u00edmica por oxig\u00eanio e enxofre.\u00a0Seus \u00f3xidos e sulfetos, uma vez formados, d\u00e3o aluminato de cal l\u00edquido e inclus\u00f5es de sulfeto no a\u00e7o que flutuam.\u00a0Os compostos de c\u00e1lcio s\u00e3o usados \u200b\u200bna fabrica\u00e7\u00e3o de inseticidas, tintas, giz de lousa, t\u00eaxteis e fogos de artif\u00edcio.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Fl\u00faor e C\u00e1lcio – 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>\nFl\u00faor<\/span><\/b><\/td>\nC\u00e1lcio<\/span><\/b><\/td>\n<\/tr>\n
Densidade<\/span><\/td>\n0,0017 g\/cm3<\/sup><\/span><\/strong><\/td>\n1,55 g\/cm3<\/sup><\/span><\/strong><\/td>\n<\/tr>\n
Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/span><\/td>\nN\/D<\/span><\/strong><\/td>\n110 MPa<\/span><\/strong><\/td>\n<\/tr>\n
For\u00e7a de rendimento<\/span><\/td>\nN\/D<\/span><\/strong><\/td>\nN\/D<\/span><\/strong><\/td>\n<\/tr>\n
M\u00f3dulo de elasticidade de Young<\/span><\/td>\nN\/D<\/span><\/strong><\/td>\n20 GPa<\/span><\/strong><\/td>\n<\/tr>\n
Escala de Mohs<\/span><\/td>\nN\/D<\/span><\/strong><\/td>\n1,5<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Brinell<\/span><\/td>\nN\/D<\/span><\/strong><\/td>\n170 \u2013 400 MPa<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Vickers<\/span><\/td>\nN\/D<\/span><\/strong><\/td>\nN\/D<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de fus\u00e3o<\/span><\/td>\n-219,8 \u00b0C<\/span><\/strong><\/td>\n842 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de ebuli\u00e7\u00e3o<\/span><\/td>\n-188,1 \u00b0C<\/span><\/strong><\/td>\n1484 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Condutividade t\u00e9rmica<\/span><\/td>\n0,0279 W\/mK<\/span><\/strong><\/td>\n200 W\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Coeficiente de Expans\u00e3o T\u00e9rmica<\/span><\/td>\nN\/D<\/span><\/strong><\/td>\n22,3 \u00b5m\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Calor espec\u00edfico<\/span><\/td>\n0,82 J\/gK<\/span><\/span><\/strong><\/td>\n0,63 J\/gK<\/span><\/strong><\/td>\n<\/tr>\n
Calor de fus\u00e3o<\/span><\/td>\n0,2552 kJ\/mol<\/span><\/strong><\/td>\n8,54 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n
Calor da vaporiza\u00e7\u00e3o<\/span><\/td>\n3,2698 kJ\/mol<\/span><\/span><\/strong><\/td>\n153,3 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 do fl\u00faor e do c\u00e1lcio, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. Fl\u00faor vs. C\u00e1lcio. 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":"\nFl\u00faor e C\u00e1lcio - Compara\u00e7\u00e3o - Propriedades - Material Properties<\/title>\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\/fluor-e-calcio-comparacao-propriedades\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fl\u00faor e C\u00e1lcio - 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 do fl\u00faor e do c\u00e1lcio, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. Fl\u00faor vs. C\u00e1lcio. 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