Abstract: DETERMINATION OF THE SOLUBILITY OFDICYCLOHEXANO18CROWN6 IN NITRIC ACID AND HLLWWang Qiuping Song Chongli(Institute of Nuclear Energy Technology,Tsinghua University,P.O.Box 1021,Beijing 102201)ABSTRACTThe solubilities of dicyclohexano18crown6(DCH18C6) in aqueous nitric acid solutions and high level liquid wastes (HLLW) are determined by solvent exrtaction method.The results show that the solubility of DCH18C6 in an aqueous solution depends not only upon the acidity,the salt content,and the temperature of the solution,but also upon its own existing form.Key words Dicyclohexano18crown6(DCH18C6) Solubilities HLLW