The kinetic properties of a new myocardial imaging agent 6 8 Ga (BAT-TECH) are investigated and its thermodynamic constants are measured. The results are as follows: Citrate -> BAT-TECH exchange reaction order is second-order; reaction ratek = 0.50 l/mol . s; activation energy E a = 56.6kJ/mol; the stability constant of 6 8 Ga (BAT-TECH) lgβ = 14.9; the acid dissociation constants of BAT-TECH pK 1 = 4.62, pK 2 = 7.68, pK 3 = 8.68, pK 4 = 11.2.