DETERMINATION OF HEAT EFFECT OF ANODIC PROCESS OF Ni3S2
(Department of Chemistry; Central South University of Technology; Changsha 410083)
Abstract: The electrowinning of Ni3S2 was designed to take place in a calorimeter in order to measurethe heat effect of the electrolysis with electrochemical calorimetry. The effect was determined un-der different cell voltuges ranging from 1.50 to 2. 16 V,and based on the data the heat effect of the anodic dissolution of Ni3S2 was figured out to be △aHm = 22. 4～99.0kJ.mol -1 (z=2)within the anode potentials 0.74～1.30 V(rs SCE).
Key words: electrochcmical calorimetry heat effect anodic process potential distribution Ni3S2