Lithium hydradation plant (Chemical) 2

[fusion2022]

Hello to everybody, Iam new in this forum

I would need where begin for information for buying elements for a metal hydration plant (lithium).
I am not chemist, so I would need only how much it can cost for budget purpose. I only know that Lithium and Hydrogen are difficult and dangerous to manage.

Where can I found electrical characteristics of HLi ?

 

[kenvlach]

Do you need to form lithium hydroxide or hydride?

Hydration: Li(s) + H₂O(liq) ? LiOH(s) + 1/2 H₂(g) + heat, 199.1 kJ/mol*

Hydriding: Li(s) + 1/2 H₂(g) --> LiH(s) + heat, 90.5 kJ/mol

Thermodynamic data from CRC Handbook of Chemistry & Physics, 79th Edn. (1998).

*Dell & Sony may have some recent experimental data on this.

 

[fusion2022]

Thank you, but it would not safer (if possible) to buy existing LiOH and remove the oxigen? I think is better not to manage hydrogen gas

 

[kenvlach]

No, LiOH is more thermodynamically stable than LiH, so much electrical energy would be required. Also, applying a lot of energy as heat, you get the side reaction
2 LiOH --> Li₂O + H₂

Re safety: LiOH is highly alkaline and readily absorbs water to form a corrosive solution (high pH) which has an exothermic reaction with metals like Al (cause of the battery fires).

Have you verified that you do not want to hydrate (react with H₂O) but actually want to hydride (react with H₂)?

 

[fusion2022]

I need to hydride, I really need react Lithium-6 isotope with hydrogen (H-Li6)
After that we would to melt it and mechanize in the appropiate inert atmosphere.

I am not chemist but I have to write a preliminary project budget, then when the project where approved we will look for some chemists.

How much do you think it can cost the necesary laboratory equipment?
We do not need big cuantities of HLi6 (one or two kilograms)

 

[kenvlach]

From looking at the phase diagram, I think bubbling H₂ gas through liquid lithium at 200^oC should produce particles of LiH. The question is what material is inert to liquid lithium. I suggest looking up previous studies, e.g., C. E. Messer at al., J. Chem. Eng. Data, vol . 6, 328-330 (1962), or
R. Weil & A. W. Lawson, J. Chem. Phys., vol. 37, p. 2730-2731 (1962) [reported a high-pressure phase transformation in LiH]
or
“Melting of lithium hydride under pressure”,
T. Ogitsu, E. Schwegler, F. Gygi and G. Galli,
Phys. Rev. Lett. vol. 91, 175502(page no.?) (2003).
Results of the latter are shown in

http://www.llnl.gov/CAR/people/ashb...tation_feb_05.pdf#search="Li-H phase diagram"

 

[kenvlach]

Also, "The Lithium-Lithium Hydride System," Ewald Veleckis, Erven H. Van Deventer, and Milton Blander, J. Physical Chemistry, vol. 78, p. 1933+ (1974).
The 1st page of this article is on-line at

http://pubs.acs.org/cgi-bin/abstrac...3.pdf?sessid=5903#search="Li-H phase diagram"

Fused silica glass was used as containers.

 

[kenvlach]

Possibly useful is the book Thermophysical Properties of Lithium Hydride, Deuteride and Tritide
Translation of: 'Teplofizicheskie svoi?stva gidrida, dei?terida, tritida litii?a? i ikh rastvorov s litiem.' (1983)
by [É]. [É]. Shpil'rain et al.
Hardcover: 236 pages
Publisher: Springer-Verlag New York, Inc (January 1987)
ISBN: 0883185326
Library of Congress CALL NUMBER: QC176.8.T4 T4613 1987
Dewey No.: 620.1/98 19

 

[fusion2022]

Thank you very much, I will buy both useful books

 

[fusion2022]

After looking for a lot I found that electrical resistivity of HLi is 3.3 ohm·m, it is considered as a salt.
It is much greater than Li one that is about 92 nanoohms·m

Where can I found the electrical characteristics of HLi and Li under pressure and temperature? (LiH decomposes at high temperatures and 1 atmosphere)

 

[25362]

Some thermophysical properties can be found at

http://webbook.nist.gov/cgi/cbook.cgi?ID=C7580678&Units=CAL