Editing Lithium aluminium hydride (section)

=== Other tetrahydridoaluminiumates ===
A variety of salts analogous to LAH are known. [[Sodium hydride|NaH]] can be used to efficiently produce [[sodium aluminium hydride]] (NaAlH<sub>4</sub>) by [[Salt metathesis reaction|metathesis]] in THF:
:LiAlH<sub>4</sub> + NaH → NaAlH<sub>4</sub> + LiH
[[Potassium aluminium hydride]] (KAlH<sub>4</sub>) can be produced similarly in [[diglyme]] as a solvent:<ref name=react>{{cite journal | last1 = Santhanam | first1 = R. | last2 = McGrady | first2 = G. S. | title = Synthesis of Alkali Metal Hexahydroaluminate Complexes Using Dimethyl Ether as a Reaction Medium | journal = Inorganica Chimica Acta | year = 2008 | volume = 361 | issue = 2 | pages = 473–478 | doi = 10.1016/j.ica.2007.04.044 }}</ref>
:LiAlH<sub>4</sub> + KH → KAlH<sub>4</sub> + LiH

The reverse, i.e., production of LAH from either sodium aluminium hydride or potassium aluminium hydride can be achieved by reaction with [[lithium chloride|LiCl]] or lithium hydride in [[diethyl ether]] or [[THF]]:<ref name="react" />
:NaAlH<sub>4</sub> + LiCl → LiAlH<sub>4</sub> + NaCl
:KAlH<sub>4</sub> + LiCl → LiAlH<sub>4</sub> + KCl

"Magnesium alanate" (Mg(AlH<sub>4</sub>)<sub>2</sub>) arises similarly using [[magnesium bromide|MgBr<sub>2</sub>]]:<ref>{{cite book |author1=Wiberg, E. |author2=Wiberg, N. |author3=Holleman, A. F. | title = Inorganic Chemistry | year = 2001 | page = 1056 | publisher = Academic Press | isbn = 0-12-352651-5 | url = https://books.google.com/books?id=vEwj1WZKThEC&pg=PA1056 }}</ref>
:2 LiAlH<sub>4</sub> + MgBr<sub>2</sub> → Mg(AlH<sub>4</sub>)<sub>2</sub> + 2 LiBr

[[Red-Al]] (or SMEAH, NaAlH<sub>2</sub>(OC<sub>2</sub>H<sub>4</sub>OCH<sub>3</sub>)<sub>2</sub>) is synthesized by reacting sodium aluminum tetrahydride (NaAlH<sub>4</sub>) and [[2-methoxyethanol]]:<ref>{{cite journal |author1=Casensky, B. |title=The chemistry of sodium alkoxyaluminium hydrides. I. Synthesis of sodium bis(2-methoxyethoxy)aluminium hydride |author2=Machacek, J. |author3=Abraham, K. | journal = Collection of Czechoslovak Chemical Communications | year = 1971 | volume = 36 |issue=7 | pages = 2648–2657 |doi=10.1135/cccc19712648 }}</ref>