Chemical analyses of Fe-Mn nodules from the Indian Ocean
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Mn nodule samples were decomposed with HCl and fumed with H2S04. SiO2 was estimated by the standard procedure of HF. The residue, after the removal of SiO2, was fused with...
锰结核样品经盐酸（HCl）分解、硫酸（H2SO4）发烟处理后，采用氢氟酸（HF）标准方法测定二氧化硅（SiO2）含量。脱除二氧化硅后的残渣经熔融处理……
