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The detailed investigation of muon catalysis of the dd-synthesis on the
deuterium-hydrogen (HD) molecules required HD gas with minimal contaminations
of deuterium (D2). To obtain high concentrations of HD with small amounts of
contaminants the method, based on the reaction
LiD + H2O = LiOH + HD,
was developed. When conducted in ethanol solution this is the first order reaction,
and its velocity can be controlled by the ethanol concentration. This simple approach
allows creation of the laboratory - and industrial - type installations for producing
needed amounts of the gas with HD content > 98%. The content of different molecular forms
of hydrogen isotopes and micro contaminants such as nitrogen and oxygen in the product
can be determined by gas chromatography.
On the created in our laboratory installation we were able to produce over 300L
of gas (HD>98.8%; H2<1.5%; D2<0.7%; N2 and O2<10-4 %) which was enough to set up the
experiment on investigation of muon catalysis of dd-synthesis on the HD molecules on
the meson fabric beam, PSI, Switzerland.
(See "PNPI
Research Report 1994-1995, page 328-330";
Preprint PNPI #2395", 2000 , Gatchina).
“Preprint PNPI #2444”, 2001, Gatchina;
“Preprint PNPI #2729”, 2007, Gatchina
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