{"id":114554,"date":"2022-02-09T05:47:43","date_gmt":"2022-02-09T04:47:43","guid":{"rendered":"https:\/\/material-properties.org\/oxygene-et-magnesium-comparaison-proprietes\/"},"modified":"2022-03-28T13:18:43","modified_gmt":"2022-03-28T12:18:43","slug":"oxygene-et-magnesium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/oxygene-et-magnesium-comparaison-proprietes\/","title":{"rendered":"Oxyg\u00e8ne et Magn\u00e9sium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l’oxyg\u00e8ne et du magn\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Oxyg\u00e8ne vs Magn\u00e9sium.<\/em><\/p>\n

\"oxyg\u00e8ne<\/p>\n

\n
<\/span>Comparer l'oxyg\u00e8ne avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

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

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

\"Magn\u00e9sium<\/a><\/p>\n

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

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

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

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

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

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

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

\"Hydrog\u00e8ne<\/a><\/p>\n

\"H\u00e9lium<\/a><\/p>\n

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

\"B\u00e9ryllium<\/a><\/p>\n

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

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

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

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

\"B\u00e9ryllium<\/a><\/p>\n

\"Oxyg\u00e8ne<\/a><\/p>\n

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

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

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

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

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

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

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

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

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

<\/div>\n
\n

Oxyg\u00e8ne et Magn\u00e9sium – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Oxyg\u00e8ne<\/h3>\n

L’oxyg\u00e8ne est un gaz r\u00e9actif incolore et inodore, l’\u00e9l\u00e9ment chimique de num\u00e9ro atomique 8 et le composant vital de l’air.\u00a0C’est un membre du groupe chalcog\u00e8ne du tableau p\u00e9riodique, un non-m\u00e9tal hautement r\u00e9actif et un agent oxydant qui forme facilement des oxydes avec la plupart des \u00e9l\u00e9ments ainsi qu’avec d’autres compos\u00e9s.\u00a0En masse, l’oxyg\u00e8ne est le troisi\u00e8me \u00e9l\u00e9ment le plus abondant dans l’univers, apr\u00e8s l’hydrog\u00e8ne et l’h\u00e9lium.
\n<\/p><\/div>

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

Magn\u00e9sium<\/h3>\n

Le magn\u00e9sium est un solide gris brillant qui ressemble physiquement aux cinq autres \u00e9l\u00e9ments de la deuxi\u00e8me colonne (groupe 2 ou m\u00e9taux alcalino-terreux) du tableau p\u00e9riodique: tous les \u00e9l\u00e9ments du groupe 2 ont la m\u00eame configuration \u00e9lectronique dans la couche \u00e9lectronique externe et une structure cristalline similaire.<\/p>\n<\/div>

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

\"Oxyg\u00e8ne<\/p>\n<\/div><\/div>\n

\n

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

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

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

<\/div>\n
\n

Oxyg\u00e8ne et Magn\u00e9sium – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Oxyg\u00e8ne<\/a><\/h3>\n

Les utilisations courantes de l’oxyg\u00e8ne comprennent la production d’acier, de plastiques et de textiles, le brasage, le soudage et le d\u00e9coupage d’aciers et d’autres m\u00e9taux, le propulseur de fus\u00e9e, l’oxyg\u00e9noth\u00e9rapie et les syst\u00e8mes de survie dans les avions, les sous-marins, les vols spatiaux et la plong\u00e9e.\u00a0La fusion du minerai de fer en acier consomme 55 % de l’oxyg\u00e8ne produit commercialement.\u00a0Dans ce processus, l’oxyg\u00e8ne est inject\u00e9 \u00e0 travers une lance \u00e0 haute pression dans le fer fondu, qui \u00e9limine les impuret\u00e9s de soufre et l’exc\u00e8s de carbone sous forme d’oxydes respectifs, de dioxyde de soufre et de dioxyde de carbone.\u00a0L’absorption d’oxyg\u00e8ne de l’air est le but essentiel de la respiration, c’est pourquoi la suppl\u00e9mentation en oxyg\u00e8ne est utilis\u00e9e en m\u00e9decine.\u00a0Le traitement augmente non seulement les niveaux d’oxyg\u00e8ne dans le sang du patient, mais a pour effet secondaire de diminuer la r\u00e9sistance au flux sanguin dans de nombreux types de poumons malades, ce qui soulage la charge de travail sur le c\u0153ur.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

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

Le magn\u00e9sium est le troisi\u00e8me m\u00e9tal de structure le plus couramment utilis\u00e9, apr\u00e8s le fer et l’aluminium.[35] Les principales applications du magn\u00e9sium sont, dans l’ordre: les alliages d’aluminium, le moulage sous pression (alli\u00e9 au zinc), l’\u00e9limination du soufre dans la production de fer et d’acier, et la production de titane dans le proc\u00e9d\u00e9 Kroll. Les alliages de magn\u00e9sium sont utilis\u00e9s dans une grande vari\u00e9t\u00e9 d’applications structurelles et non structurelles. Les applications structurelles incluent les \u00e9quipements automobiles, industriels, de manutention, commerciaux et a\u00e9rospatiaux. Les alliages de magn\u00e9sium sont utilis\u00e9s pour les pi\u00e8ces qui fonctionnent \u00e0 des vitesses \u00e9lev\u00e9es et doivent donc \u00eatre l\u00e9gers pour minimiser les forces d’inertie. Les applications commerciales comprennent les outils portatifs, les ordinateurs portables, les bagages et les \u00e9chelles, les automobiles (par exemple, les volants et les colonnes, les cadres de si\u00e8ge, les bo\u00eetiers de transmission). Magnox (alliage),<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Oxyg\u00e8ne et Magn\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>\nOxyg\u00e8ne<\/b><\/td>\nMagn\u00e9sium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n0,00125g\/cm3<\/strong><\/td>\n1,738 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\nN \/ A<\/strong><\/td>\n200 MPa<\/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>\nN \/ A<\/strong><\/td>\n45 GPa<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\nN \/ A<\/strong><\/td>\n2,5<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\nN \/ A<\/strong><\/td>\n260 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>\n-209,9\u00b0C<\/strong><\/td>\n649\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n-195,8\u00b0C<\/strong><\/td>\n1090\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n0,02598 W\/mK<\/strong><\/td>\n156 W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\nN \/ A<\/strong><\/td>\n24,8 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n1,04 J\/g\u00b7K<\/span><\/strong><\/td>\n1,02 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n(N2) 0,7204 kJ\/mole<\/strong><\/td>\n8,954 kJ\/mol<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n(N2) 5,56 kJ\/mole<\/span><\/strong><\/td>\n127,4 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 de l’oxyg\u00e8ne et du magn\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Oxyg\u00e8ne vs Magn\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":"\nOxyg\u00e8ne et Magn\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 de l'oxyg\u00e8ne et du magn\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. 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