The influence of nitric acid concentration on the dissolution rate heazlewoodite

The paper presents the results of research of influence of nitric acid concentration on the dissolution rate heazlewoodite. The dependence of the amount of Nickel transferred to the solution on the time of the dissolution process was studied. The absence of time influence on the specific dissolution rate was revealed. Specific dissolution rates of Ni2S3 in wide concentration ranges were investigated. From the studied dependence was chosen a range to build a mathematical model of the influencing factors.