cobalt nitrate hexahydrate

Rh in crude Rh-containing solution was determined by gravimetry with nitrate cobaltic hexamine as precipitant.

采用沉淀、萃取分离法和络合掩蔽法消除Au、Fe、Ir干扰元素对硝酸六氨合钴重量法测定铑的影响,并对其分离和掩蔽条件进行了系统的研究。