{"id":114512,"date":"2022-02-08T04:06:56","date_gmt":"2022-02-08T03:06:56","guid":{"rendered":"https:\/\/material-properties.org\/phosphore-et-magnesium-comparatif-proprietes\/"},"modified":"2022-03-28T07:57:14","modified_gmt":"2022-03-28T06:57:14","slug":"phosphore-et-magnesium-comparatif-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/phosphore-et-magnesium-comparatif-proprietes\/","title":{"rendered":"Phosphore et Magn\u00e9sium – Comparatif – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du phosphore 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.\u00a0Phosphore vs Magn\u00e9sium.<\/em><\/p>\n

\"phosphore<\/p>\n

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

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

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

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

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

\"Magn\u00e9sium<\/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

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

Phosphore<\/h3>\n

En tant qu’\u00e9l\u00e9ment, le phosphore existe sous deux formes principales – le phosphore blanc et le phosphore rouge – mais comme il est hautement r\u00e9actif, le phosphore ne se trouve jamais sous forme d’\u00e9l\u00e9ment libre sur Terre.\u00a0\u00c0 0,099 %, le phosphore est le pnictog\u00e8ne le plus abondant dans la cro\u00fbte terrestre.
\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

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

\n

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

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

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

<\/div>\n
\n

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

Phosphore<\/a><\/h3>\n

Le phosphore est un nutriment essentiel pour les plantes (le nutriment le plus souvent limitant, apr\u00e8s l’azote), et la majeure partie de toute la production de phosphore se fait dans des acides phosphoriques concentr\u00e9s pour les engrais agricoles, contenant jusqu’\u00e0 70\u00a0% \u00e0 75\u00a0% de P2O5.\u00a0La grande majorit\u00e9 des compos\u00e9s phosphor\u00e9s extraits sont consomm\u00e9s comme engrais.\u00a0Le phosphate est n\u00e9cessaire pour remplacer le phosphore que les plantes retirent du sol, et sa demande annuelle augmente presque deux fois plus vite que la croissance de la population humaine.\u00a0D’autres applications incluent les compos\u00e9s organophosphor\u00e9s dans les d\u00e9tergents, les pesticides et les agents neurotoxiques.<\/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), 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

Phosphore 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>\nPhosphore<\/b><\/td>\nMagn\u00e9sium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n1,823 g\/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>\n0,5<\/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>\n44,1\u00b0C<\/strong><\/td>\n649\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n280\u00b0C<\/strong><\/td>\n1090\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n0,235 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>\n0,77 J\/g\u00b7K<\/span><\/strong><\/td>\n1,02 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n0,657 kJ\/mole<\/strong><\/td>\n8,954 kJ\/mol<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n51,9 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 du phosphore 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.\u00a0Phosphore 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":"\nPhosphore et Magn\u00e9sium - Comparatif - 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 phosphore et du magn\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. 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