Especies tritiadas obtidas por irradiação de compostos de litio

AUTOR(ES)
DATA DE PUBLICAÇÃO

1981

RESUMO

The nuclear reaction Li(n,a)H occurs when compounds containing lithium are irradiated with neutrons. The resultant tritium atoms, after their high initial kinetic energy is thermalized, may react with ehemical species within the solid to produce new chemical bonds. When the irradiated compounds are dissolved in an aqueous solution, the various species containing tritium may react with each other, with molecules of the solvent or with other species present in the solution. ln this study, the tritiated species resulting from aqueous dissolution of irradiated lithiurn carbonate and lithium oxalate were separated using exclusion/partition chromatography. Identifications were made by use of carbon-14 labelled tracers or by deslocation with carriers. Nine triated product species were separated from irradiated lithium-6-enriched lithium carbonate. Of these, the following were identified: water, formaldehyde, formic acid, acetic acid, prapionic acid, glyoxylic acid and glycolic acid. Six triated species were observed from irradiated lithium oxalate (prepared from both lithium-6-enriched lithium and natural abundance lithium), of which the following were identified: water, farmic acid, glyoxylic acid and glycolic acid. Neither acetic nor propionic acid was detected.

ASSUNTO(S)

litio compostos organoliticos

ACESSO AO ARTIGO

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