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- W2377097013 abstract "According to the principle of metallurgical refining of rhodium,a method for the determination of rhodium in rhodium nitrate products by hydrogen reduction gravimetry was established.The conditions for the determination of rhodium were investigated and optimized.The effect of impurities on the determination results of rhodium was also tested.It was found that,in the medium of 0.3-0.9mol/L HNO3,rhodium nitrate and ammonium chloride formed a red(NH4)3RhCl6crystal complex in which rhodium could be determined by gravimetry after a series of treatment:firstly,it was dried at 100℃;then,ammonium salt in it was decomposed at 350℃;lastly,the obtained matter was reduced into rhodium sponge by hydrogen at 750℃and dried at 105℃.The method was employed to determine rhodium of 6.55%,7.36%,8.05%,9.99% and 20.05%,in rhodium nitrate with the range(R)of±0.01%,the standard deviation(SD)of 0.004 1%and the relative standard deviation(RSD,n=22)of 0.02%-0.06%.The accuracy and precision of this method were higher than YS/T594-2006 standard method." @default.
- W2377097013 created "2016-06-24" @default.
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- W2377097013 date "2014-01-01" @default.
- W2377097013 modified "2023-09-23" @default.
- W2377097013 title "Determination of rhodium in rhodium nitrate products by hydrogen reduction gravimetry" @default.
- W2377097013 hasPublicationYear "2014" @default.
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