{"id":409,"date":"2023-07-23T14:35:26","date_gmt":"2023-07-23T14:35:26","guid":{"rendered":"https:\/\/chemuza.org\/tr\/sodyum-borohidrit-nabh4\/"},"modified":"2023-07-23T14:35:26","modified_gmt":"2023-07-23T14:35:26","slug":"sodyum-borohidrit-nabh4","status":"publish","type":"post","link":"https:\/\/chemuza.org\/tr\/sodyum-borohidrit-nabh4\/","title":{"rendered":"Sodyum borohidrit \u2013 nabh4, 16940-66-2"},"content":{"rendered":"<p>Sodyum borohidr\u00fcr (NaBH4), organik sentezde indirgeyici madde olarak ve yak\u0131t h\u00fccreleri i\u00e7in hidrojen kayna\u011f\u0131 olarak kullan\u0131lan beyaz kristalli bir tozdur. Suya kar\u015f\u0131 olduk\u00e7a reaktif ve duyarl\u0131d\u0131r.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td> <strong>IUPAC Ad\u0131<\/strong><\/td>\n<td> Sodyum tetrahidroborat<\/td>\n<\/tr>\n<tr>\n<td> <strong>Molek\u00fcler form\u00fcl<\/strong><\/td>\n<td> NaBH4<\/td>\n<\/tr>\n<tr>\n<td> <strong>CAS numaras\u0131<\/strong><\/td>\n<td> 16940-66-2<\/td>\n<\/tr>\n<tr>\n<td> <strong>E\u015f anlaml\u0131<\/strong><\/td>\n<td> Sodyum borohidrit, sodyum tetrahidridoborat, sodyum borohidrit hidrat, sodyum tetrahidroborat hidrat<\/td>\n<\/tr>\n<tr>\n<td> <strong>InChI<\/strong><\/td>\n<td> InChI=1S\/BH4.Na\/h1H4;\/q+1;-1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<h2 class=\"wp-block-heading\"> <strong>Sodyum borohidr\u00fcr\u00fcn \u00f6zellikleri<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"> Sodyum borohidr\u00fcr\u00fcn kaynama noktas\u0131<\/h3>\n<p> Sodyum borohidr\u00fcr\u00fcn iyi tan\u0131mlanm\u0131\u015f bir kaynama noktas\u0131 yoktur \u00e7\u00fcnk\u00fc \u0131s\u0131t\u0131ld\u0131\u011f\u0131nda ayr\u0131\u015f\u0131r. Ayr\u0131\u015fma s\u0131cakl\u0131\u011f\u0131 s\u0131cakl\u0131k ve bas\u0131n\u00e7 ko\u015fullar\u0131na ba\u011fl\u0131d\u0131r.<\/p>\n<h3 class=\"wp-block-heading\"> Sodyum borohidr\u00fcr\u00fcn erime noktas\u0131<\/h3>\n<p> Sodyum borohidr\u00fcr\u00fcn erime noktas\u0131 240 ila 242\u00b0C&#8217;dir. Bu s\u0131cakl\u0131kta NaBH4&#8217;\u00fcn kat\u0131 formu s\u0131v\u0131 duruma ge\u00e7er.<\/p>\n<h3 class=\"wp-block-heading\"> Sodyum borohidr\u00fcr\u00fcn yo\u011funlu\u011fu g\/ml<\/h3>\n<p> Sodyum borohidr\u00fcr\u00fcn yo\u011funlu\u011fu 1,33 g\/ml&#8217;dir. Di\u011fer maddelerle kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda nispeten yo\u011fun olan beyaz kristal bir kat\u0131d\u0131r.<\/p>\n<h3 class=\"wp-block-heading\"> Sodyum Borohidr\u00fcr\u00fcn molar k\u00fctlesi<\/h3>\n<p> Sodyum Borohidr\u00fcr\u00fcn (NaBH4) molar k\u00fctlesi 37,83 g\/mol&#8217;d\u00fcr. NaBH4&#8217;\u00fcn molek\u00fcler form\u00fcl\u00fcnde bulunan t\u00fcm atomlar\u0131n atomik k\u00fctlelerinin (1 sodyum atomu, 1 bor atomu ve 4 hidrojen atomu) eklenmesiyle hesaplan\u0131r.<\/p>\n<h3 class=\"wp-block-heading\"> Sodyum borohidr\u00fcr\u00fcn molek\u00fcler a\u011f\u0131rl\u0131\u011f\u0131<\/h3>\n<p> Sodyum borohidr\u00fcr\u00fcn molek\u00fcler a\u011f\u0131rl\u0131\u011f\u0131 37,83 g\/mol&#8217;d\u00fcr. Bu, NaBH4&#8217;\u00fcn molek\u00fcler form\u00fcl\u00fcndeki tek tek atomlar\u0131n atomik k\u00fctlelerinin toplam\u0131d\u0131r. <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/chemuza.org\/wp-content\/uploads\/2023\/08\/Sodium-Borohydride-Na-BH4.jpg\" alt=\"Sodyum borohidrid\" width=\"186\" height=\"109\" srcset=\"\" sizes=\"\"><\/figure>\n<\/div>\n<h3 class=\"wp-block-heading\"> Sodyum borohidr\u00fcr\u00fcn yap\u0131s\u0131<\/h3>\n<p> Sodyum borohidrit, merkezinde bir sodyum iyonu ve ona ba\u011fl\u0131 d\u00f6rt bor hidrit grubu bulunan tetrahedral bir molek\u00fcld\u00fcr. Bor atomu d\u00f6rt hidrojen atomuna ba\u011flanarak tetrahedral bir yap\u0131 olu\u015fturur.<\/p>\n<h3 class=\"wp-block-heading\"> Sodyum Borohidrit Form\u00fcl\u00fc<\/h3>\n<p> Sodyum tetrahidroborat\u0131n kimyasal form\u00fcl\u00fc NaBH4&#8217;t\u00fcr. Bir sodyum atomu (Na), bir bor atomu (B) ve d\u00f6rt hidrojen atomundan (H) olu\u015fur. Bu form\u00fcl, bu maddenin kimyasal bile\u015fimini ve elementel bile\u015fimini temsil eder.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td> <strong>D\u0131\u015f g\u00f6r\u00fcn\u00fc\u015f<\/strong><\/td>\n<td> Beyaz kristal toz<\/td>\n<\/tr>\n<tr>\n<td> <strong>Spesifik yer \u00e7ekimi<\/strong><\/td>\n<td> 1.33g\/ml<\/td>\n<\/tr>\n<tr>\n<td> <strong>Renk<\/strong><\/td>\n<td> Beyaz<\/td>\n<\/tr>\n<tr>\n<td> <strong>Koku<\/strong><\/td>\n<td> Kokusuz<\/td>\n<\/tr>\n<tr>\n<td> <strong>Molar k\u00fctle<\/strong><\/td>\n<td> 37,83 gr\/mol<\/td>\n<\/tr>\n<tr>\n<td> <strong>Yo\u011funluk<\/strong><\/td>\n<td> 1.33g\/ml<\/td>\n<\/tr>\n<tr>\n<td> <strong>F\u00fczyon noktas\u0131<\/strong><\/td>\n<td> 240-242\u00b0C<\/td>\n<\/tr>\n<tr>\n<td> <strong>Kaynama noktas\u0131<\/strong><\/td>\n<td> Is\u0131t\u0131ld\u0131\u011f\u0131nda ayr\u0131\u015f\u0131r<\/td>\n<\/tr>\n<tr>\n<td> <strong>Fla\u015f noktas\u0131<\/strong><\/td>\n<td> Uygulanamaz<\/td>\n<\/tr>\n<tr>\n<td> <strong>sudaki \u00e7\u00f6z\u00fcn\u00fcrl\u00fck<\/strong><\/td>\n<td> Suda \u00e7\u00f6z\u00fcnebilir<\/td>\n<\/tr>\n<tr>\n<td> <strong>\u00e7\u00f6z\u00fcn\u00fcrl\u00fck<\/strong><\/td>\n<td> Organik \u00e7\u00f6z\u00fcc\u00fclerde \u00e7\u00f6z\u00fcn\u00fcr<\/td>\n<\/tr>\n<tr>\n<td> <strong>Buhar bas\u0131nc\u0131<\/strong><\/td>\n<td> Uygulanamaz<\/td>\n<\/tr>\n<tr>\n<td> <strong>Buhar yo\u011funlu\u011fu<\/strong><\/td>\n<td> Uygulanamaz<\/td>\n<\/tr>\n<tr>\n<td> <strong>pKa<\/strong><\/td>\n<td> Uygulanamaz<\/td>\n<\/tr>\n<tr>\n<td> <strong>pH<\/strong><\/td>\n<td> Uygulanamaz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<h2 class=\"wp-block-heading\"> <strong>Sodyum borhidr\u00fcr\u00fcn g\u00fcvenli\u011fi ve tehlikeleri<\/strong><\/h2>\n<p> Sodyum tetrahidroborat yan\u0131c\u0131d\u0131r ve suyla reaksiyona girer. Yan\u0131c\u0131 hidrojen gaz\u0131 a\u00e7\u0131\u011fa \u00e7\u0131karabilir ve hava ile patlay\u0131c\u0131 kar\u0131\u015f\u0131mlar olu\u015fturabilir. Sodyum tetrahidroborat ayn\u0131 zamanda cildi ve g\u00f6z\u00fc tahri\u015f edicidir. Sodyum tetrahidroboratla \u00e7al\u0131\u015f\u0131rken maruz kalmay\u0131 en aza indirmek i\u00e7in yeterli havaland\u0131rma ve ki\u015fisel koruyucu ekipman kullan\u0131lmal\u0131d\u0131r. Ate\u015f kaynaklar\u0131ndan ve sudan uzakta, serin ve kuru bir yerde saklay\u0131n.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td> <strong>Tehlike sembolleri<\/strong><\/td>\n<td> Yan\u0131c\u0131, Tahri\u015f Edici<\/td>\n<\/tr>\n<tr>\n<td> <strong>G\u00fcvenlik A\u00e7\u0131klamas\u0131<\/strong><\/td>\n<td> S26, S36\/37<\/td>\n<\/tr>\n<tr>\n<td> <strong>BM kimlik numaralar\u0131<\/strong><\/td>\n<td> UN3375<\/td>\n<\/tr>\n<tr>\n<td> <strong>HS kodu<\/strong><\/td>\n<td> 2827.90.90<\/td>\n<\/tr>\n<tr>\n<td> <strong>Tehlike s\u0131n\u0131f\u0131<\/strong><\/td>\n<td> 4.3<\/td>\n<\/tr>\n<tr>\n<td> <strong>Paketleme grubu<\/strong><\/td>\n<td> II<\/td>\n<\/tr>\n<tr>\n<td> <strong>Toksisite<\/strong><\/td>\n<td> Yutulmas\u0131, solunmas\u0131 ve ciltle temas\u0131 halinde orta derecede toksiktir<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<h2 class=\"wp-block-heading\"> <strong>Sodyum borohidr\u00fcr\u00fcn sentezi i\u00e7in y\u00f6ntemler<\/strong><\/h2>\n<p> Sodyum borohidr\u00fcr (NaBH4), a\u015fa\u011f\u0131dakiler de dahil olmak \u00fczere \u00e7e\u015fitli y\u00f6ntemlerle sentezlenebilir:<\/p>\n<ul>\n<li> Metalik sodyumun indirgenmesi: Bu y\u00f6ntem, NaBH4 \u00fcretmek i\u00e7in bor trioksitin (B2O3) metalik sodyum ile indirgenmesini i\u00e7erir.<\/li>\n<li> Sodyum Hidritin \u0130ndirgenmesi: Sodyum hidrit (NaH), NaBH4 \u00fcretmek \u00fczere bor trihalidleri indirgemek i\u00e7in kullan\u0131labilir.<\/li>\n<li> Lityum Al\u00fcminyum Hidrit \u0130ndirgemesi: Lityum al\u00fcminyum hidrit (LiAlH4), NaBH4 \u00fcretmek \u00fczere bor halojen\u00fcrleri indirgemek i\u00e7in kullan\u0131labilir.<\/li>\n<li> Hidrojenasyon: Sodyum borohidrit, sodyum borohidr\u00fcr\u00fcn (NaBH3H) hidrojenlenmesiyle sentezlenebilir.<\/li>\n<\/ul>\n<p> Sodyum tetrahidroborat yan\u0131c\u0131 ve reaktif oldu\u011fundan, uzman ekipman ve e\u011fitimli personel, iyi havaland\u0131r\u0131lm\u0131\u015f bir ortamda t\u00fcm bu y\u00f6ntemleri uygulamal\u0131d\u0131r. Se\u00e7ilen sentez y\u00f6ntemi istenen verim, safl\u0131k ve maliyet hususlar\u0131na ba\u011fl\u0131 olacakt\u0131r.<\/p>\n<h2 class=\"wp-block-heading\"> <strong>Sodyum borohidr\u00fcr\u00fcn kullan\u0131m alanlar\u0131<\/strong><\/h2>\n<p> Sodyum tetrahidroborat (NaBH4) \u00e7ok y\u00f6nl\u00fc bir indirgeyici ajand\u0131r ve \u00e7e\u015fitli alanlarda geni\u015f bir uygulama alan\u0131na sahiptir. Sodyum tetrahidroborat\u0131n yayg\u0131n kullan\u0131mlar\u0131ndan baz\u0131lar\u0131 \u015funlard\u0131r:<\/p>\n<ul>\n<li> Organik Sentez: NaBH4, karbonil bile\u015fiklerinin, esterlerin, nitrillerin ve amidlerin kar\u015f\u0131l\u0131k gelen alkollere, aldehitlere ve aminlere indirgenmesinde kullan\u0131l\u0131r.<\/li>\n<li> Farmas\u00f6tikler: Sodyum tetrahidroborat, \u00e7e\u015fitli aktif farmas\u00f6tik bile\u015fenlerin sentezinde ve kiral bile\u015fiklerin haz\u0131rlanmas\u0131nda kullan\u0131l\u0131r.<\/li>\n<li> Polimer Bilimi: NaBH4, epoksi re\u00e7inelerin ve doymam\u0131\u015f polyester re\u00e7inelerin indirgenmesinde kullan\u0131l\u0131r.<\/li>\n<li> \u00c7evre: Sodyum tetrahidroborat, at\u0131k su ar\u0131t\u0131m\u0131nda a\u011f\u0131r metaller ve boyalar gibi kirleticileri azaltmak i\u00e7in kullan\u0131labilir.<\/li>\n<li> G\u0131da End\u00fcstrisi: NaBH4, az ya\u011fl\u0131 s\u00fcr\u00fclebilir \u00fcr\u00fcnler, dondurma ve \u00e7ikolata \u00fcretiminde indirgeyici madde olarak kullan\u0131l\u0131r.<\/li>\n<\/ul>\n<p> Genel olarak, sodyum tetrahidroborat\u0131n, hafif indirgeme \u00f6zellikleri ve karma\u015f\u0131k molek\u00fcler yap\u0131lardaki fonksiyonel gruplar\u0131 se\u00e7ici olarak azaltma yetene\u011fi nedeniyle kimyasal sentez alan\u0131nda de\u011ferli bir ara\u00e7 oldu\u011fu kan\u0131tlanm\u0131\u015ft\u0131r.<\/p>\n<h2 class=\"wp-block-heading\"> <strong>Sorular:<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"> Bu bile\u015fiklerden hangisi sodyum borohidr\u00fcr ile indirgenebilir? t\u00fcm ba\u015fvuruyu kontrol et.<\/h3>\n<p> Sodyum tetrahidroborat (NaBH4), a\u015fa\u011f\u0131dakiler de dahil olmak \u00fczere \u00e7ok \u00e7e\u015fitli bile\u015fikleri azaltabilir:<\/p>\n<ul>\n<li> Aldehitler ve ketonlar gibi karbonil bile\u015fikleri<\/li>\n<li> nitriller<\/li>\n<li> Esterler<\/li>\n<li> Amidler<\/li>\n<li> Epoksi re\u00e7ineler<\/li>\n<li> Doymam\u0131\u015f polyester re\u00e7ineler<\/li>\n<li> Baz\u0131 boyalar<\/li>\n<li> A\u011f\u0131r metaller<\/li>\n<li> Kiral bile\u015fikler<\/li>\n<\/ul>\n<p> Belirli ko\u015fullar\u0131n ve reaksiyon parametrelerinin indirgeme verimlili\u011fini ve indirgeme i\u015fleminin se\u00e7icili\u011fini etkileyebilece\u011finin dikkate al\u0131nmas\u0131 \u00f6nemlidir. Ek olarak, baz\u0131 bile\u015fikler istenmeyen yan reaksiyonlara maruz kalabilece\u011finden, t\u00fcm bile\u015fikler sodyum tetrahidroborat ile indirgemeye uygun de\u011fildir.<\/p>\n<h3 class=\"wp-block-heading\"> Sodyum borhidr\u00fcr\u00fcn neme maruz b\u0131rak\u0131lmas\u0131 neden \u00f6nemlidir?<\/h3>\n<p> Sodyum tetrahidroborat\u0131n (NaBH4) neme maruz kalmas\u0131 birka\u00e7 nedenden dolay\u0131 \u00f6nemlidir:<\/p>\n<ul>\n<li> Reaktivite: Sodyum tetrahidroborat \u00e7ok reaktiftir ve nem varl\u0131\u011f\u0131nda h\u0131zla ayr\u0131\u015farak hidrojen gaz\u0131 ve \u0131s\u0131 \u00fcretebilir. Bu, do\u011fru \u015fekilde kullan\u0131lmad\u0131\u011f\u0131 takdirde patlama ve yang\u0131n riski olu\u015fturabilir.<\/li>\n<li> Hidroliz: Sodyum tetrahidroborat, susuz forma k\u0131yasla azalt\u0131c\u0131 \u00f6zellikleri azaltan sodyum tetrahidroborat hidrat\u0131 (NaBH4.xH2O) olu\u015fturmak \u00fczere nem varl\u0131\u011f\u0131nda kolayca hidrolize olur.<\/li>\n<li> Depolama Kararl\u0131l\u0131\u011f\u0131: Nem, sodyum tetrahidroborat\u0131n yava\u015f yava\u015f ayr\u0131\u015fmas\u0131na neden olarak raf \u00f6mr\u00fcn\u00fc ve indirgeyici madde olarak etkinli\u011fini azaltabilir.<\/li>\n<\/ul>\n<p> Bu nedenle, sodyum borohidr\u00fcr\u00fcn kuru, hava ge\u00e7irmez bir kapta saklanmas\u0131 ve neme maruz kalmay\u0131 en aza indirmek i\u00e7in iyi havaland\u0131r\u0131lan bir ortamda kullan\u0131lmas\u0131 \u00f6nemlidir. Neme maruz kalmak ka\u00e7\u0131n\u0131lmazsa, nem giderme maddelerinin veya koruyucu atmosferlerin kullan\u0131lmas\u0131, bunun sodyum tetrahidroborat\u0131n stabilitesi ve reaktivitesi \u00fczerindeki etkilerini en aza indirmeye yard\u0131mc\u0131 olabilir.<\/p>\n<h3 class=\"wp-block-heading\"> Sodyum borohidrit bir kataliz\u00f6r m\u00fc?<\/h3>\n<p> Sodyum tetrahidroborat (NaBH4) genellikle bir kataliz\u00f6r olarak de\u011fil, bir indirgeyici madde olarak kabul edilir. Kataliz\u00f6r, kendisi kal\u0131c\u0131 bir de\u011fi\u015fime u\u011framadan kimyasal reaksiyonu h\u0131zland\u0131ran bir maddedir. Sodyum tetrahidroborat indirgendik\u00e7e kimyasal olarak de\u011fi\u015fir ve indirgeme reaksiyonunda t\u00fcketilir.<\/p>\n<p> Organik sentez ve indirgeme reaksiyonlar\u0131nda genellikle hidrit (H-) iyonlar\u0131n\u0131n kayna\u011f\u0131 olarak sodyum tetrahidroborat kullan\u0131l\u0131r. Sodyum tetrahidroborat, bu hidrit iyonlar\u0131n\u0131 substrat molek\u00fcl\u00fcne aktararak karboniller, nitriller ve esterler gibi fonksiyonel gruplar\u0131 azalt\u0131r. \u0130ndirgeyici bir madde olarak rol\u00fcne ra\u011fmen, sodyum tetrahidroborat, proton al\u0131c\u0131s\u0131 olarak ikincil bir rol oynayabilir, bu da onu reaksiyon ko\u015fullar\u0131n\u0131 etkileyebilen ve reaksiyon sonucunu etkileyebilen hafif bir baz haline getirir.<\/p>\n<h3 class=\"wp-block-heading\"> Sodyum borhidr\u00fcr\u00fcn suyla kar\u0131\u015ft\u0131r\u0131lmas\u0131 durumunda hangi yan\u0131c\u0131 gaz \u00fcretilir?<\/h3>\n<p> Sodyum tetrahidroborat (NaBH4) suyla kar\u0131\u015ft\u0131r\u0131l\u0131rsa h\u0131zl\u0131 hidrolize u\u011frayarak hidratl\u0131 sodyum borohidrit (NaBH4.xH2O) ve hidrojen gaz\u0131 olu\u015fur. \u00dcretilen hidrojen gaz\u0131 yan\u0131c\u0131d\u0131r ve uygun \u015fekilde kullan\u0131lmazsa patlama ve yang\u0131n tehlikesi olu\u015fturabilir.<\/p>\n<p> Sodyum tetrahidroborat ile su aras\u0131ndaki reaksiyon ekzotermik olabilir ve \u0131s\u0131 \u00fcretebilir, bu da hidroliz h\u0131z\u0131n\u0131 daha da h\u0131zland\u0131rabilir ve hidrojen gaz\u0131 sal\u0131n\u0131m\u0131n\u0131 art\u0131rabilir. Reaksiyon ayn\u0131 zamanda k\u0131sa s\u00fcrede b\u00fcy\u00fck miktarda gaz \u00fcreterek a\u015f\u0131r\u0131 bas\u0131n\u00e7 ve patlama riski yaratabilir.<\/p>\n<p> Bu nedenle, sodyum tetrahidroborat\u0131n iyi havaland\u0131r\u0131lm\u0131\u015f bir ortamda i\u015flenmesi ve neme veya suya maruz b\u0131rak\u0131lmas\u0131ndan ka\u00e7\u0131n\u0131lmas\u0131 \u00f6nemlidir. Neme maruz kalmak ka\u00e7\u0131n\u0131lmazsa, nem giderme maddelerinin veya koruyucu atmosferlerin kullan\u0131lmas\u0131, hidroliz oran\u0131n\u0131n ve hidrojen gaz\u0131 sal\u0131n\u0131m\u0131n\u0131n en aza indirilmesine yard\u0131mc\u0131 olabilir.<\/p>\n<h3 class=\"wp-block-heading\"> Ka\u00e7 mol kafur sodyum borohidrit ile reaksiyona girer?<\/h3>\n<p> Sodyum tetrahidroborat (NaBH4) ile reaksiyona girecek kafurun mol say\u0131s\u0131, reaksiyonun stokiyometrisi, reaktanlar\u0131n konsantrasyonu ve safl\u0131\u011f\u0131 ve reaksiyon ko\u015fullar\u0131 dahil olmak \u00fczere \u00e7e\u015fitli fakt\u00f6rlere ba\u011fl\u0131d\u0131r. Reaksiyonun stokiyometrisi, sodyum tetrahidroborat kullan\u0131larak kafurun izobornele indirgenmesine ili\u015fkin kimyasal denklemden belirlenebilir:<\/p>\n<p> C10H16O + 4 NaBH4 \u2192 C10H18O + 4 NaBO2 + 4 H2<\/p>\n<p> Denkleme g\u00f6re, bir mol kafur, 4 mol sodyum tetrahidroborat ile reaksiyona girer. Belirli bir miktarda NaBH4 ile reaksiyona girecek ger\u00e7ek kafur miktar\u0131, reaktanlar\u0131n konsantrasyonuna ve safl\u0131\u011f\u0131n\u0131n yan\u0131 s\u0131ra s\u0131cakl\u0131k, zaman ve kataliz\u00f6r gibi reaksiyon ko\u015fullar\u0131na ba\u011fl\u0131 olacakt\u0131r.<\/p>\n<p> Bu nedenle daha kesin bilgi olmadan sodyum tetrahidroborat ile reaksiyona girecek kafurun tam mol say\u0131s\u0131n\u0131 belirlemek m\u00fcmk\u00fcn de\u011fildir.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sodyum borohidr\u00fcr (NaBH4), organik sentezde indirgeyici madde olarak ve yak\u0131t h\u00fccreleri i\u00e7in hidrojen kayna\u011f\u0131 olarak kullan\u0131lan beyaz kristalli bir tozdur. Suya kar\u015f\u0131 olduk\u00e7a reaktif ve duyarl\u0131d\u0131r. IUPAC Ad\u0131 Sodyum tetrahidroborat Molek\u00fcler form\u00fcl NaBH4 CAS numaras\u0131 16940-66-2 E\u015f anlaml\u0131 Sodyum borohidrit, sodyum tetrahidridoborat, sodyum borohidrit hidrat, sodyum tetrahidroborat hidrat InChI InChI=1S\/BH4.Na\/h1H4;\/q+1;-1 Sodyum borohidr\u00fcr\u00fcn \u00f6zellikleri Sodyum borohidr\u00fcr\u00fcn &#8230; <a title=\"Sodyum borohidrit \u2013 nabh4, 16940-66-2\" class=\"read-more\" href=\"https:\/\/chemuza.org\/tr\/sodyum-borohidrit-nabh4\/\" aria-label=\"More on Sodyum borohidrit \u2013 nabh4, 16940-66-2\">Devam\u0131n\u0131 oku<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Sodyum Borohidrit - NaBH4, 16940-66-2<\/title>\n<meta name=\"description\" content=\"Sodyum borohidr\u00fcr (NaBH4), organik sentezde indirgeyici madde olarak ve yak\u0131t h\u00fccreleri i\u00e7in hidrojen kayna\u011f\u0131 olarak kullan\u0131lan beyaz kristalli bir tozdur.\" \/>\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\/sodyum-borohidrit-nabh4\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sodyum Borohidrit - 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