Abstract: The radiolytic products formed by gamma irradiation of aerated K14CN solutions at pH 10.27 are separated by descending paper chromatography with n-butanol-acetic acid-water (4:1:5) as developer and eight products are obtained. The decomposition of the main products during paper chromatography is inhibited by a carrier technique. Gabonate is also found in the irradiated, systems with G (CO2 3-) value of 0.33 which is independent of the concentration of oxygen dissolved. With the curve of H2O2 concentration versus dose to indicate the variation of oxygen concentration during irradiation, the yields of the radiolytic products in relation to oxygen concentration are determined. When the solution is saturated with ordinary air, the G values found by paper chromatography are as follows; Rf=0, G(-CN-)=0.17;Rf=0.1 (glycine),G(-CN-)=0.06; Rf=0.21, G(-CN-)=0.08; Rf=0.38 (cyanate), G(-CN-) = 0.06; Rf=0.51 (formamide), G(-CN-)=0.07; Rf=0.67, G (-CN-)=0.03; Rf=0.75 (formaldehyde), G (-CN-)=0.08; Rf=0.84, G (-CN-)=0.05.The G values of radiolytic products in the absence of oxygen, on the other hand, are as follows:Rf=0, G(-CN-)=0.17; Rf=0.1 (glycine), G(-CN-)=0.51; Rf=0.21, G(-CN-) = 0.83; Rf=0.38 (cyanate), G(-CN-) = 0.55; Rf=0.51 (formamide), G(-CN-) = 0.93; Rf= 0.67, G(-CN-)=0.03; Rf=0.75 (formaldehyde), G (-CN-) = 0.11; Rf=0.84, G (-CN-)=0.04.The fact that the ratio of G (CNO-) to G (HCONH2) is about 1:1 in the solution saturated with ordinary air and about 1:1.7 in the absence of oxygen, indicates that besides the reaction 2·CONH2→HCNO+HCONH2, the following reactions may have taken place in the absepce of oxygen, H2CN+·CONH2→HCN+HCONH2,H2CN+·CONH2 + H2O→2HCONH2.