The Ternary System Cu₂HIO₆ ？ 2H₂O-H₅IO₆-H₂O at 303 K

Sa？etak Copper hexaoxoiodates 4CuO ？ I2O7 ？ 5H2O, 3CuO ？ I2O7 ？ 3H2O and 3CuO ？ 2I2O7 ？ 7H2O have been isolated from the ternary system Cu2HIO6 ？ 2H2O-H5IO6-H2O at 303 K and studied by chemical, thermal X-ray diffraction and infrared spectroscopic methods. Some of the intermediates obtained on isothermal heating of the parent compounds have been characterised