Method for preparing calcite-rhododite solid solution through water bath co-heating and application of calcite-rhododite solid solution

The invention discloses a method for preparing a calcite-rhomboxite solid solution through water bath co-heating and application of the calcite-rhomboxite solid solution. According to the method, a calcium nitrate solution and a nickel nitrate solution are proportioned into a mixed solution according to a corresponding molar ratio, and ammonium bicarbonate is used as a basic solution. The preparation method comprises the following steps: adding an ammonium bicarbonate solution into a mixed solution with a corresponding ratio, controlling the reaction temperature and the stirring speed, and adjusting the heat preservation time and the aging time, so as to obtain calcite-rhomboxite solid solutions with different molar ratios. And finally, taking a proper amount of synthesized calcite-rhomboinite solid solution series, and dissolving in three different aqueous solutions at 25 DEG C to research the dissolution, migration and transformation rules and stability of the calcite-rhomboinite solid solution nickel in th