{"id":114509,"date":"2022-02-08T03:00:53","date_gmt":"2022-02-08T02:00:53","guid":{"rendered":"https:\/\/material-properties.org\/soufre-et-calcium-comparaison-proprietes\/"},"modified":"2022-03-28T07:52:30","modified_gmt":"2022-03-28T06:52:30","slug":"soufre-et-calcium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/soufre-et-calcium-comparaison-proprietes\/","title":{"rendered":"Soufre et Calcium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du soufre et du calcium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Soufre vs Calcium.<\/em><\/p>\n

\"soufre<\/p>\n

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

<\/div>\n
\n

Soufre et Calcium – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Soufre<\/h3>\n

Le soufre est abondant, multivalent et non m\u00e9tallique.\u00a0Dans des conditions normales, les atomes de soufre forment des mol\u00e9cules octatomiques cycliques de formule chimique S8.\u00a0Le soufre \u00e9l\u00e9mentaire est un solide cristallin jaune vif \u00e0 temp\u00e9rature ambiante.\u00a0Chimiquement, le soufre r\u00e9agit avec tous les \u00e9l\u00e9ments \u00e0 l’exception de l’or, du platine, de l’iridium, du tellure et des gaz nobles.
\n<\/p><\/div>

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

Calcium<\/h3>\n

Le calcium est un m\u00e9tal alcalino-terreux, c’est un m\u00e9tal jaune p\u00e2le r\u00e9actif qui forme une couche d’oxyde-nitrure sombre lorsqu’il est expos\u00e9 \u00e0 l’air.\u00a0Ses propri\u00e9t\u00e9s physiques et chimiques sont les plus similaires \u00e0 celles de ses homologues plus lourds, le strontium et le baryum.\u00a0C’est le cinqui\u00e8me \u00e9l\u00e9ment le plus abondant de la cro\u00fbte terrestre et le troisi\u00e8me m\u00e9tal le plus abondant, apr\u00e8s le fer et l’aluminium.<\/p>\n<\/div>

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

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

\n

\"Calcium<\/p>\n

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

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

<\/div>\n
\n

Soufre et Calcium – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Soufre<\/a><\/h3>\n

La plus grande utilisation commerciale de l’\u00e9l\u00e9ment est la production d’acide sulfurique pour les engrais sulfat\u00e9s et phosphat\u00e9s et d’autres proc\u00e9d\u00e9s chimiques.\u00a0Le soufre est de plus en plus utilis\u00e9 comme composant des engrais.\u00a0La forme la plus importante de soufre pour les engrais est le sulfate de calcium min\u00e9ral.\u00a0L’\u00e9l\u00e9ment soufre est utilis\u00e9 dans les allumettes, les insecticides et les fongicides.\u00a0De nombreux compos\u00e9s soufr\u00e9s sont odorif\u00e9rants et les odeurs de gaz naturel odoris\u00e9, d’odeur de mouffette, de pamplemousse et d’ail sont dues aux compos\u00e9s organosoufr\u00e9s.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

Calcium<\/a><\/h3>\n

La plus grande utilisation de calcium m\u00e9tallique est dans la sid\u00e9rurgie, en raison de sa forte affinit\u00e9 chimique pour l’oxyg\u00e8ne et le soufre.\u00a0Ses oxydes et sulfures, une fois form\u00e9s, donnent des inclusions d’aluminate de chaux liquide et de sulfure dans l’acier qui flottent.\u00a0Les compos\u00e9s de calcium sont utilis\u00e9s dans la fabrication d’insecticides, de peintures, de craie \u00e0 tableau noir, de textiles et de feux d’artifice.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Soufre et Calcium – 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>\nSoufre<\/b><\/td>\nCalcium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n1,823 g\/cm3<\/strong><\/td>\n1,55 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\nN \/ A<\/strong><\/td>\n110 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>\n20 GPa<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\n0,5<\/strong><\/td>\n1,5<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\nN \/ A<\/strong><\/td>\n170 \u2013 400 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>\n842\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n280\u00b0C<\/strong><\/td>\n1484\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n0,235 W\/mK<\/strong><\/td>\n200W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\nN \/ A<\/strong><\/td>\n22,3 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,77 J\/g\u00b7K<\/span><\/strong><\/td>\n0,63 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n0,657 kJ\/mole<\/strong><\/td>\n8,54 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n51,9 kJ\/mole<\/span><\/strong><\/td>\n153,3\u00a0kJ\/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 soufre et du calcium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Soufre vs Calcium. 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":"\nSoufre et Calcium - 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 soufre et du calcium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. 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