Planning, preparation, conductance, and evaluation of field tests are reported to determine the explosive hazards associated with the combining of the sodium-potassium eutectic alloy ( NaK) with the superoxide of potassium ( KO 2 ) under various conditions of state, contamination, and detonation initiation. International Nuclear Information System (INIS) Explosive hazards analysis of the eutectic solution NaK and KO2