摘要: The densities of molten nickel mattes Cu2S-Ni3S2 and FeS-Ni3S2 were measured in the temperature interval 970° to 1321°C over complete composition range. Several density values also obtained for ternary matte Cu2S-FeS-Ni3S2 same binary Cu2S-Ni3S2, as 4.94 5.83 g per cu cm, 3.55 6.23 2.65 4.92 respectively. Molar volumes excess molar evaluated.