Litium aluminium hidrida: Perbedaan antara revisi

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[[Berkas:Lialh4 sem.png|jmpl|kiri|180px|Citra SEM dari bubuk LAH]]
[[Berkas:Lialh4 xrpd.svg|jmpl|kiri|180px|Pola [[difraksi sinar-X]] dari LiAlH<sub>4</sub> yang baru diperoleh. Tanda bintang menunjukkan pengotor, mungkin [[Litium klorida|LiCl]].]]
LAH adalah suatu bubuk tak berwarna, namun sampel komersial biasanya berwarna abu-abu akibat kontaminasi.<ref name=africa>{{cite encyclopedia |author1=Gerrans, G. C. |author2=Hartmann-Petersen, P. | title = Lithium Aluminium Hydride | encyclopedia = Sasol Encyclopaedia of Science and Technology | publisher = New Africa Books | year = 2007 | page = 143 | isbn = 1-86928-384-8 | url = https://books.google.com/books?id=1wS3aWR5SO4C&pg=PA143 }}</ref> Material ini dapat dimurnikan dengan [[rekristalisasi]] dari [[dietil eter]]. Pemurnian skala besar mempekerjakan [[ekstraksi|ekstraktor Soxhlet]]. Umumnya, material abu-abu tidak murni digunakan dalam sintesis, karena pengotor tidak berbahaya dan dapat dengan mudah dipisahkan dari produk organik. Material bubuk murni adalah piroforik, tetapi bukan merupakan kristal yang besar.<ref>{{cite book |author1=Keese, R. |author2=Brändle, M. |author3=Toube, T. P. | title = Practical Organic Synthesis: A Student's Guide | publisher = John Wiley and Sons | year = 2006 | page = 134 | isbn = 0-470-02966-8 | url = https://books.google.com/books?id=-fo-Z3TfB3YC&pg=PA134 }}</ref> Beberapa material komersial mengandung [[minyak]] [[mineral]] untuk menghambat reaksi dengan kelembaban atmosfer, tetapi lebih sering dikemas dalam karung plastik kedap-kelembaban.<ref>{{cite journal | last1 = Andreasen | first1 = A. | last2 = Vegge | first2 = T. | last3 = Pedersen | first3 = A. S. | title = Dehydrogenation Kinetics of as-Received and Ball-Milled LiAlH<sub>4</sub> | journal = Journal of Solid State Chemistry | year = 2005 | volume = 178 | issue = 12 | pages = 3672–3678 | doi = 10.1016/j.jssc.2005.09.027 | url = http://dcwww.camd.dtu.dk/Nabiit/Dehydrogenation%20kinetics%20of%20as-received%20and%20ball-milled%20LiAlH4.pdf | access-date = 2017-03-20 | archive-date = 2016-03-03 | archive-url = https://web.archive.org/web/20160303221434/http://dcwww.camd.dtu.dk/Nabiit/Dehydrogenation%20kinetics%20of%20as-received%20and%20ball-milled%20LiAlH4.pdf | dead-url = yes }}</ref>
 
LAH bereaksi dahsyat dengan [[air]], termasuk kelembaban atmosfer. Reaksi berlangsung menurut persamaan ideal berikut:<ref name=africa/>
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*{{cite book | editor = Lide, D. R. | title = Handbook of Chemistry and Physics | publisher = CRC Press | year = 1997 | isbn = 0-8493-0478-4 }}
*{{cite book | author = Carey, F. A. | title = Organic Chemistry with Online Learning Center and Learning by Model CD-ROM | publisher = McGraw-Hill | year = 2002 | isbn = 0-07-252170-8 | url = http://www.chem.ucalgary.ca/courses/351/Carey5th/Carey.html }}
*{{cite book | author = Andreasen, A. | title = Hydrogen Storage Materials with Focus on Main Group I-II Elements | chapter = Chapter 5: Complex Hydrides | publisher = Risø National Laboratory | year = 2005 | isbn = 87-550-3498-5 | url = http://www.risoe.dk/rispubl/AFM/afmpdf/ris-phd-21.pdf | access-date = 2017-03-20 | archive-date = 2012-08-19 | archive-url = https://web.archive.org/web/20120819163021/http://www.risoe.dk/rispubl/AFM/afmpdf/ris-phd-21.pdf | dead-url = yes }}
 
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