In reply to Jones Beene's message of Mon, 29 Dec 2014 10:06:31 -0800: Hi, [snip] >First, we can note that after the hydrogen is released from LiAlH4, the >lithium remains alloyed to aluminum, since there is no intrinsic mechanism >to separate the metals below the Li boiling point of 1342 °C which is >closely approached, and this is notably where maximum COP occurs for >Parkhomov. In an alloy, lithium atoms near the boiling point would react >differently than as an element. Near-phase-change could be the key to the >exotherm and to promoting double ionization of Li.
According to wiki (http://en.wikipedia.org/wiki/Lithium_hydride) a less common method of the preparation of LiH is by heating LiAlH4 (200 ºC). Furthermore: "Thus removal of H2 requires high temperatures, well above the 700 °C used for its synthesis". ...so it would seem that at 1300 ºC it ought to decompose readily enough. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
