Molecular formula : Na2U2O7
nature : yellow amorphous solids, using sodium hydroxide solution role in uranyl ion-containing aqueous solution of preparation. Hard to dissolve in water, soluble in acid and sodium carbonate solution. Uranium ore to the carbonate (Na2CO3 + NaHCO3) leaching solution [to uranium coordination anions UO2 k (CO3) 34- form] Add caustic soda (NaOH) to pH> 13, HUANG Chengru uranium that is the color of uranium sodium (Na k2U2O7) precipitation. This is the carbonate leaching of uranium ore fluid quantitative recovery of a method of uranium-caustic soda precipitation.
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