{"id":114529,"date":"2022-02-08T20:14:08","date_gmt":"2022-02-08T19:14:08","guid":{"rendered":"https:\/\/material-properties.org\/magnesium-et-brome-comparaison-proprietes\/"},"modified":"2022-03-28T09:52:26","modified_gmt":"2022-03-28T08:52:26","slug":"magnesium-et-brome-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/magnesium-et-brome-comparaison-proprietes\/","title":{"rendered":"Magn\u00e9sium et Brome – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du magn\u00e9sium et du brome, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Magn\u00e9sium vs Brome.<\/em><\/p>\n

\"magn\u00e9sium<\/p>\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

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

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

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

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

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

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

<\/div>\n
\n

Magn\u00e9sium et Brome – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\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.
\n<\/p><\/div>

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

Brome<\/h3>\n

Le brome est le troisi\u00e8me halog\u00e8ne le plus l\u00e9ger et est un liquide rouge-brun fumant \u00e0 temp\u00e9rature ambiante qui s’\u00e9vapore facilement pour former un gaz de couleur similaire.\u00a0Ses propri\u00e9t\u00e9s sont donc interm\u00e9diaires entre celles du chlore et de l’iode.<\/p>\n<\/div>

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

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

\n

\"Brome<\/p>\n

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

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

<\/div>\n
\n

Magn\u00e9sium et Brome – Applications<\/h2>\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), dont le nom est l’abr\u00e9viation de \u00ab\u00a0magn\u00e9sium non oxydant\u00a0\u00bb, est compos\u00e9 \u00e0 99\u00a0% de magn\u00e9sium et \u00e0 1\u00a0% d’aluminium, et est utilis\u00e9 dans le gainage des barres de combustible dans les r\u00e9acteurs nucl\u00e9aires magnox.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

Brome<\/a><\/h3>\n

Une grande vari\u00e9t\u00e9 de compos\u00e9s organobrom\u00e9s sont utilis\u00e9s dans l’industrie.\u00a0Certains sont pr\u00e9par\u00e9s \u00e0 partir de brome et d’autres sont pr\u00e9par\u00e9s \u00e0 partir de bromure d’hydrog\u00e8ne, qui est obtenu en br\u00fblant de l’hydrog\u00e8ne dans du brome.\u00a0Les retardateurs de flamme brom\u00e9s repr\u00e9sentent un produit d’importance croissante et constituent la plus grande utilisation commerciale du brome.\u00a0L’une des principales utilisations du brome est un purificateur\/d\u00e9sinfectant de l’eau, comme alternative au chlore.\u00a0Les compos\u00e9s de brome sont des pesticides efficaces, utilis\u00e9s \u00e0 la fois comme fumigants du sol dans l’agriculture, en particulier la culture fruiti\u00e8re, et comme fumigants pour emp\u00eacher les ravageurs d’attaquer les c\u00e9r\u00e9ales stock\u00e9es et d’autres produits.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Magn\u00e9sium et Brome – 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>\nMagn\u00e9sium<\/b><\/td>\nBrome<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n1,738 g\/cm3<\/strong><\/td>\n3,12 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\n200 MPa<\/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>\n45 GPa<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\n2,5<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\n260 MPa<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n649\u00b0C<\/strong><\/td>\n-7,3\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n1090\u00b0C<\/strong><\/td>\n59\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n156 W\/mK<\/strong><\/td>\n0,122 W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n24,8 \u00b5m\/mK<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n1,02 J\/g\u00b7K<\/span><\/strong><\/td>\n0,473 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n8,954 kJ\/mol<\/strong><\/td>\n5,286 kJ\/mol<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n127,4 kJ\/mole<\/span><\/strong><\/td>\n15,438 kJ\/mol<\/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 magn\u00e9sium et du brome, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Magn\u00e9sium vs Brome. 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":"\nMagn\u00e9sium et Brome - 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 magn\u00e9sium et du brome, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. 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