2.The complex formation reactions of thoriumnitrate and sodium salt of EDTA with an amino acid (d-Val, dl-Ile, dl-Met, l-Gln, l-Pro) have been studied by the method of PH potential titration.
3.The solid complex of thoriumnitrate with biuret Th(BuH_2)_4(NO_3)_4has been prepared and characterized by chemical analysis,infrared spe-ctra,differential thermal(DTA)and thermogravimetric(TG)analysis,X-ray powder diffraction and conductivity.