{"id":1503,"date":"2023-07-14T02:46:59","date_gmt":"2023-07-14T02:46:59","guid":{"rendered":"https:\/\/chemuza.org\/tr\/tungsten\/"},"modified":"2023-07-14T02:46:59","modified_gmt":"2023-07-14T02:46:59","slug":"tungsten","status":"publish","type":"page","link":"https:\/\/chemuza.org\/tr\/tungsten\/","title":{"rendered":"Tungsten"},"content":{"rendered":"<p>Tungsten periyodik tablonun 74. kimyasal elementi ve en a\u011f\u0131r metaldir. Toprakta do\u011fal olarak Scheelite ve Wolframit ad\u0131 verilen iki tip mineralde 1,38 ppm oran\u0131nda bulunur. E\u015fsiz \u00f6zellikleri bu metaloidi teknoloji end\u00fcstrisinde \u00e7ok faydal\u0131 k\u0131lmaktad\u0131r. O zaman bu metalin t\u00fcm detaylar\u0131n\u0131 bilin.<\/p>\n<h2> <strong>Tungsten nedir?<\/strong><\/h2>\n<p> G\u00f6r\u00fcn\u00fcm\u00fc \u00e7ok sert ve yo\u011fun, grimsi beyaz ve parlak, do\u011fal bir elementtir. Kat\u0131dan s\u0131v\u0131ya d\u00f6n\u00fc\u015fme s\u0131cakl\u0131\u011f\u0131 3422\u00b0C olan ge\u00e7i\u015f elementleri aras\u0131nda en y\u00fcksek erime noktas\u0131na sahiptir. Ayr\u0131ca kimyasal i\u015flemlerle \u00e7\u00f6z\u00fcnebilir tuz, toz ve tungsten okside d\u00f6n\u00fc\u015ft\u00fcr\u00fclebilir.<\/p>\n<h3> <strong>Tungsten sembol\u00fc<\/strong><\/h3>\n<p> <span class=\"content-chemical-element\" style=\"float: left;width: 65px;height: 65px;border: 3px solid #666; display:flex;\n    justify-content: center;align-items: center;margin-right: 15px;\"><span style=\"font-size: 38px;\">W<\/span><\/span> Ad\u0131, metaloidin en dikkat \u00e7ekici \u00f6zelliklerini ifade eder. A\u011f\u0131r ta\u015f anlam\u0131na gelen <em>tung<\/em> ve a\u011f\u0131r ta\u015f anlam\u0131na gelen <em>steno<\/em> ta\u015f\u0131 anlam\u0131na gelen \u0130sve\u00e7\u00e7e tungsten kelimesinden gelir. \u0130sve\u00e7li kimyagerler Tobern Bergman ve Carl Wilhelm tungsten \u00fczerinde \u00e7al\u0131\u015fm\u0131\u015flar ve yeni bir element ke\u015ffetmi\u015fler, ancak ay\u0131rmay\u0131 ba\u015faramasalar da ona tungsten ad\u0131n\u0131 vermi\u015flerdir.<\/p>\n<p> \u00d6te yandan Wolfram Almanca dilinden geliyor ve anlam\u0131n\u0131n pek bir de\u011feri yok. Bu soyad\u0131, elementi saf haliyle Wolframit&#8217;ten ay\u0131rmay\u0131 ba\u015faran \u0130spanyol Juan Jos\u00e9 Elhuyar taraf\u0131ndan verildi. Bununla birlikte, bug\u00fcne kadar ad\u0131, elementin ad\u0131 konusunda tart\u0131\u015fmalara neden olmu\u015ftur, ancak bir\u00e7ok ki\u015fi her iki formun da resmi olmas\u0131 gerekti\u011fine inanmaktad\u0131r. \u015eimdilik Wolfram metaloidi temsil ediyor.<\/p>\n<h2> <strong>Wolfram&#8217;\u0131n \u00d6zellikleri<\/strong><\/h2>\n<p> Tungsten, saf haliyle veya di\u011fer elementlerle kar\u0131\u015ft\u0131r\u0131larak i\u015flenecek \u00e7ok y\u00f6nl\u00fcl\u00fc\u011f\u00fc ile karakterize edilir. Ayr\u0131ca saf haliyle t\u00fcm metaller aras\u0131nda en d\u00fc\u015f\u00fck termal genle\u015fme katsay\u0131s\u0131na sahiptir ve s\u00fcrt\u00fcnmeye kar\u015f\u0131 en b\u00fcy\u00fck dirence sahip olan\u0131d\u0131r. Ayr\u0131ca ba\u015fka de\u011ferli \u00f6zellikleri de vard\u0131r ve bunlar a\u015fa\u011f\u0131da a\u00e7\u0131klanm\u0131\u015ft\u0131r:<\/p>\n<ul>\n<li> <strong>Durum<\/strong> : Sa\u011flam ve son derece sert.<\/li>\n<li> <strong>Renk<\/strong> : Metal saf halde beyaz ve yabanc\u0131 maddeler i\u00e7erdi\u011finde grimsi renktedir.<\/li>\n<li> <strong>\u00c7\u00f6z\u00fcn\u00fcrl\u00fck<\/strong> : Suda \u00e7\u00f6z\u00fcnmez.<\/li>\n<li> <strong>Toksisite<\/strong> : D\u00fc\u015f\u00fck, insanlar i\u00e7in yaln\u0131zca b\u00fcy\u00fck miktarlarda toksik hale gelir, \u00e7evrede tungsten kaynakl\u0131 g\u00fc\u00e7l\u00fc bir kirlenme tespit edilmemi\u015ftir.<\/li>\n<li> <strong>Reaktivite<\/strong> : Y\u00fcksek s\u0131cakl\u0131kta Karbon, K\u00fck\u00fcrt, Klor, \u0130yot ve Karbon Dioksit ile reaksiyona girer.<\/li>\n<li> <strong>Yap\u0131s\u0131<\/strong> : Merkezi k\u00fcbik kristal.<\/li>\n<li> <strong>Kompozisyon<\/strong> : 74 elektron, 108 n\u00f6tron ve 74 proton.<\/li>\n<\/ul>\n<h2> <strong>Tungstenin kimyasal ve fiziksel \u00f6zellikleri<\/strong><\/h2>\n<ol>\n<li> <strong>Atom numaras\u0131<\/strong> : 74<\/li>\n<li> <strong>D\u00f6nem<\/strong> : 6<\/li>\n<li> <strong>Blok<\/strong> : D<\/li>\n<li> <strong>Grup<\/strong> : 6<\/li>\n<li> <strong>Kovalent yar\u0131\u00e7ap (\u00c5):<\/strong> 146 pm<\/li>\n<li> <strong>Yo\u011funluk:<\/strong> 19.250 kg\/m\u00b3<\/li>\n<li> <strong>Kaynama noktas\u0131:<\/strong> 5.555<strong> <\/strong>\u00b0C<\/li>\n<li> <strong>Erime noktas\u0131:<\/strong> 3,420\u00b0C<\/li>\n<li> <strong>Atom yar\u0131\u00e7ap\u0131:<\/strong> 193<\/li>\n<li> <strong>Ortalama yar\u0131\u00e7ap:<\/strong> 135 saat<\/li>\n<li> <strong>Elektronegatiflik:<\/strong> 2,36<\/li>\n<li> <strong>Oksidasyon durumu:<\/strong> 6, 5, 4, 3, 2<\/li>\n<li> <strong>Birinci iyonla\u015fma potansiyeli eV:<\/strong> kJ\/mol<\/li>\n<li> <strong>Elektronik konfig\u00fcrasyon:<\/strong> [Xe]4f14 5d4 6s2<\/li>\n<li> <strong>Is\u0131 iletkenli\u011fi:<\/strong> 174 W\/(Km)<\/li>\n<li> <strong>Elektriksel iletkenlik:<\/strong> 18,9 \u00d7 10 <sup>6<\/sup> m <sup>-1<\/sup> \u00b7\u03a9 <sup>-1<\/sup><\/li>\n<li> <strong>Atom k\u00fctlesi (g\/mol):<\/strong> 182,84 u<\/li>\n<li> <strong>Katman ba\u015f\u0131na elektron say\u0131s\u0131:<\/strong> 2, 8, 18, 32, 12, 2<\/li>\n<li> <strong>Oksit:<\/strong> Hafif asidik<\/li>\n<li> <strong>\u00d6zg\u00fcl \u0131s\u0131:<\/strong> 130 J \/ (K.kg)<\/li>\n<\/ol>\n<h2> <strong>Tungstenin k\u00f6keni<\/strong><\/h2>\n<p> \u0130sve\u00e7li kimyagerler Carl Wilhelm ve Bergman Tobern, daha \u00f6nce az bilinen bir mineral olan tungsten \u00fczerinde ara\u015ft\u0131rmalar yapt\u0131lar. Yeni bir elementin var oldu\u011fu sonucuna var\u0131yorlar ama onu tan\u0131mlayam\u0131yorlar veya onu mineralin tamam\u0131ndan ay\u0131ram\u0131yorlar.<\/p>\n<p> Daha sonra 1783 y\u0131l\u0131nda \u00fcnl\u00fc \u0130spanyol kimyager Juan Jos\u00e9 Elhuyar ve karde\u015fi Fasto, Wolfram veya Tungsten ad\u0131n\u0131 verdikleri yeni saf elementi elde etmeyi ba\u015fard\u0131lar. Ke\u015fif, \u00c7ek Cumhuriyeti ile Almanya aras\u0131nda bulunan madenlerde ger\u00e7ekle\u015fti. Do\u011fada kayalar\u0131n aras\u0131nda veya baz\u0131 minerallerle kar\u0131\u015f\u0131m halinde bulunur.<\/p>\n<h2> <strong>Wolfram ne i\u00e7indir?<\/strong><\/h2>\n<p> H\u0131z gerektiren sert kesici tak\u0131mlar\u0131n yap\u0131m\u0131nda malzeme olarak kullan\u0131l\u0131r. O zamandan beri bu element, demir veya \u00e7elik ve Wolfram karb\u00fcr i\u00e7eren demirli ala\u015f\u0131mlar gibi g\u00fc\u00e7l\u00fc bir bile\u015fim olu\u015fturuyor. \u0130kincisi, kal\u0131plar\u0131n ve delicilerin imalat\u0131nda elmas\u0131n yerini al\u0131r.<\/p>\n<p> \u00d6te yandan tungsten kristalleri, n\u00f6tron emisyonlar\u0131 ve gama \u0131\u015f\u0131nlar\u0131 gibi farkl\u0131 radyasyon t\u00fcrlerini \u00f6nlemek i\u00e7in koruyucu bir kalkan olarak kullan\u0131l\u0131yor. Ayr\u0131ca a\u015fa\u011f\u0131daki aletlerin imalat\u0131nda da kullan\u0131l\u0131r:<\/p>\n<ul>\n<li> Kaynak \u00e7ubuklar\u0131.<\/li>\n<li> G\u00fc\u00e7 t\u00fcpleri i\u00e7in katotlar.<\/li>\n<li> X-\u0131\u015f\u0131n\u0131 hedefleri.<\/li>\n<li> U\u00e7ak ve otomobil distrib\u00fct\u00f6rleri i\u00e7in plakalar.<\/li>\n<li> Elektrik lambalar\u0131.<\/li>\n<li> Elektronik ekipman.<\/li>\n<li> Di\u015f hekimleri i\u00e7in aletler.<\/li>\n<li> Metal aletler.<\/li>\n<li> \u00c7\u0131lg\u0131n \u015fark\u0131lar.<\/li>\n<\/ul>\n<h2> <strong>tungsten oksit<\/strong><\/h2>\n<p> Tungsten 2+ ile 6+ aras\u0131nda en kararl\u0131 element oksidasyon durumlar\u0131n\u0131 \u00fcretir. \u00c7ok benzer kimyasal \u00f6zellikleri nedeniyle periyodik tablonun krom ve molibden ile birlikte alt grubunu kaplar. D\u00f6rt oksit ve iki karb\u00fcr \u00e7ok spesifiktir. Di\u011fer taraftan karbonit, silisit, bor\u00fcr, s\u00fclf\u00fcr ve nitr\u00fcr bile\u015fiklerini olu\u015fturur.<\/p>\n<p> \u00d6zetle tungstenin y\u00fcksek korozyon direnci, sertli\u011fi ve y\u00fcksek erime noktas\u0131 nedeniyle bir dizi kesici alet ve di\u015f\u00e7ilik aletlerinin imalat\u0131nda kullan\u0131lmaktad\u0131r. Ayn\u0131 zamanda kur\u015fun gibi y\u00fcksek d\u00fczeyde toksisite \u00fcretmeden radyasyona kar\u015f\u0131 m\u00fckemmel bir koruyucudur.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tungsten periyodik tablonun 74. kimyasal elementi ve en a\u011f\u0131r metaldir. Toprakta do\u011fal olarak Scheelite ve Wolframit ad\u0131 verilen iki tip mineralde 1,38 ppm oran\u0131nda bulunur. E\u015fsiz \u00f6zellikleri bu metaloidi teknoloji end\u00fcstrisinde \u00e7ok faydal\u0131 k\u0131lmaktad\u0131r. O zaman bu metalin t\u00fcm detaylar\u0131n\u0131 bilin. Tungsten nedir? G\u00f6r\u00fcn\u00fcm\u00fc \u00e7ok sert ve yo\u011fun, grimsi beyaz ve parlak, do\u011fal bir elementtir. &#8230; <a title=\"Tungsten\" class=\"read-more\" href=\"https:\/\/chemuza.org\/tr\/tungsten\/\" aria-label=\"More on Tungsten\">Devam\u0131n\u0131 oku<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Tungsten - Chemuza<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/chemuza.org\/tr\/tungsten\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tungsten - Chemuza\" \/>\n<meta property=\"og:description\" content=\"Tungsten periyodik tablonun 74. kimyasal elementi ve en a\u011f\u0131r metaldir. Toprakta do\u011fal olarak Scheelite ve Wolframit ad\u0131 verilen iki tip mineralde 1,38 ppm oran\u0131nda bulunur. E\u015fsiz \u00f6zellikleri bu metaloidi teknoloji end\u00fcstrisinde \u00e7ok faydal\u0131 k\u0131lmaktad\u0131r. O zaman bu metalin t\u00fcm detaylar\u0131n\u0131 bilin. Tungsten nedir? G\u00f6r\u00fcn\u00fcm\u00fc \u00e7ok sert ve yo\u011fun, grimsi beyaz ve parlak, do\u011fal bir elementtir. ... 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