Solid state catalytic tritation:Isotopic exchange and tritium addition in high specific activity synthesis

Solid state catalytic saturation of double bond with hydrogen, deuterium and tritium is a valid route to incorporate selectively isotopes in specific positions. We studied the best fitting of all parameters that rule the radioactive yield of tritation of an unsatured substrate, to guarantee the maximum incorporation of labeled atom in the product at room temperarure. The wise choise of experimental parameters allowed very high radiochemical yields. The number of tritium exceeded the statistical presence of two atoms. Relative magnitudes for addition and exchange kinetic constants are provided.