S0 Phase 3, CuBr, CeH~2N4HBr

80 CuBr, phase 7 C~I-I~N~HCI-CuCl 7.5 CuCl, phase 8 12.5 CuCl, phase 8 15 Phase 8 17.5 Phase 8 phases 5 and 6 are poor conductors at room tempera-ture. The x- ray pattern of phase 4 showed a strong resemblance to that of phase 3. Al l samples in the system C6HI~N4C2HsBr-CuBr were prepared at 100 ~ Their diffraction patterns showed almost the same peaks as those of CuBr and small peaks which were different from those of the starting materials. Electrical conductivity measure-ment suggested that an intermediate compound may exist at the composition near 87.5 m/o CuBr, and, therefore, the small peaks may be due to a new com-pound, phase 7. In the system C6HI2N4HC1-CuC1, an intermediate compound, phase 8, was found at the composition ear 15 m/o CuC1. Conclusion High copper ion conductivity solids are found in the systems C6H12N4CI~I-CuI, C6H12N4HBr-CuBr, C6HI2N4CH3Br-CuBr, C6HI2N4C2HsBr-CuBr, and C6HI2N4HCI-CuC1. The highest conductivities in each system are found at the composition 17CuI