{"id":114446,"date":"2022-02-07T02:28:46","date_gmt":"2022-02-07T01:28:46","guid":{"rendered":"https:\/\/material-properties.org\/brome-et-iode-comparaison-proprietes\/"},"modified":"2022-03-23T07:53:07","modified_gmt":"2022-03-23T06:53:07","slug":"brome-et-iode-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/brome-et-iode-comparaison-proprietes\/","title":{"rendered":"Brome et Iode – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du brome et de l’iode, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Brome vs Iode.<\/em><\/p>\n

\"brome<\/p>\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

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

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

\"S\u00e9l\u00e9nium<\/a><\/p>\n

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

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

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

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

\"C\u00e9sium<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

<\/div>\n
\n

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

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

Iode<\/h3>\n

L’iode est le plus lourd des halog\u00e8nes stables, il existe sous la forme d’un solide m\u00e9tallique brillant, violet-noir dans des conditions standard qui se sublime facilement pour former un gaz violet.\u00a0L’iode est le moins abondant des halog\u00e8nes stables, \u00e9tant le soixante et uni\u00e8me \u00e9l\u00e9ment le plus abondant.\u00a0Elle est encore moins abondante que les terres dites rares.\u00a0C’est le nutriment min\u00e9ral essentiel le plus lourd.<\/p>\n<\/div>

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

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

\n

\"Iode<\/p>\n

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

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

<\/div>\n
\n

Brome et Iode – Applications<\/h2>\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
\n
\n

Iode<\/a><\/h3>\n

En plus des produits nutritionnels, l’iode et les d\u00e9riv\u00e9s d’iode sont utilis\u00e9s dans un large \u00e9ventail d’applications m\u00e9dicales, agricoles et industrielles.\u00a0Environ la moiti\u00e9 de tout l’iode produit entre dans divers compos\u00e9s organoiod\u00e9s, 15% restants restent sous forme d’\u00e9l\u00e9ment pur, 15% suppl\u00e9mentaires sont utilis\u00e9s pour former de l’iodure de potassium et 15% suppl\u00e9mentaires pour d’autres compos\u00e9s iod\u00e9s inorganiques.\u00a0L’application principale est la production de produits de contraste pour rayons X (22 %).\u00a0Le num\u00e9ro atomique et la densit\u00e9 \u00e9lev\u00e9s de l’iode le rendent parfaitement adapt\u00e9 \u00e0 cette application, car sa pr\u00e9sence dans le corps peut aider \u00e0 augmenter le contraste entre les tissus, les organes et les vaisseaux sanguins avec des densit\u00e9s de rayons X similaires.\u00a0Il est utilis\u00e9 comme antiseptique pour les plaies externes.\u00a0Une autre application \u00e0 l’origine de la demande d’iode est le film polarisant dans les \u00e9crans \u00e0 cristaux liquides (LCD).<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Brome et Iode – 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>\nBrome<\/b><\/td>\nIode<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n3,12 g\/cm3<\/strong><\/td>\n4,94 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\nN \/ A<\/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 d’\u00e9lasticit\u00e9 de Young<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\nN \/ A<\/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>\n-7,3\u00b0C<\/strong><\/td>\n113,5\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n59\u00b0C<\/strong><\/td>\n184\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n0,122 W\/mK<\/strong><\/td>\n0,449 W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,473 J\/g\u00b7K<\/span><\/strong><\/td>\n0,214 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n5,286 kJ\/mol<\/strong><\/td>\n7,824 kJ\/mol<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n15,438 kJ\/mol<\/span><\/strong><\/td>\n20,752 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 brome et de l’iode, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Brome vs Iode. 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":"\nBrome et Iode - 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 brome et de l'iode, 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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