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| Determination of Ruthenium in Ruthenium Trichloride by Hydrogen Reduction Gravimetric Method |
| Received:March 07, 2014 Revised:June 07, 2014 |
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| DOI：doi:10.3969/j.issn.2095-1035.2014.03.010 |
| KeyWord:ruthenium trichloride production; ruthenium; hydrogen reduction gravimetric method |
| Author | Institution |
| GUO Junmei |
1贵研铂业股份有限公司 稀贵金属综合利用新技术国家重点实验室，昆明 ;2 贵研资源易门有限公司，云南 易门 |
| HAN Shouli |
1贵研铂业股份有限公司 稀贵金属综合利用新技术国家重点实验室，昆明 ;2 贵研资源易门有限公司，云南 易门 |
| TAN Wenjin |
1贵研铂业股份有限公司 稀贵金属综合利用新技术国家重点实验室，昆明 ;2 贵研资源易门有限公司，云南 易门 |
| HE Xiaotang |
1贵研铂业股份有限公司 稀贵金属综合利用新技术国家重点实验室，昆明 ;2 贵研资源易门有限公司，云南 易门 |
| LI Kun |
1贵研铂业股份有限公司 稀贵金属综合利用新技术国家重点实验室，昆明 ;2 贵研资源易门有限公司，云南 易门 |
| LIU Wen |
1贵研铂业股份有限公司 稀贵金属综合利用新技术国家重点实验室，昆明 ;2 贵研资源易门有限公司，云南 易门 |
| LI Yong |
贵研资源易门有限公司，云南 易门 |
| WANG Huan |
贵研资源易门有限公司，云南 易门 |
| WU Xilong |
贵研资源易门有限公司，云南 易门 |
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| Abstract: |
| A new method for the determination of ruthenium in the production of ruthenium trichloride by hydrogen reduction gravimetric method was established. Analytical conditions were investigated and optimized. Combining with AAS, ICP-AES and considering the purity of ammonia chloride, the effect of impurities on the determination of ruthenium content was investigated. The results indicated that the (NH4)2RuCl6 complex was formed completely using ruthenium trichloride (containing 0.3～0.6 g ruthenium) and ammonium chloride (5～7 g),then it was reduced to sponge ruthenium under the conditions (1. water drying at 100 ℃, 2. decomposition of ammonium salt at 350℃, 3. hydrogen reduction at 750℃, 4. vapor drying at 105 ℃). Ruthenium contents of 3.94%, 5.88%, 7.32%, 9.47%, 10.84% and 12.93% in above-mentioned samples were measured. The ranges, standard deviations(S), relative standard deviations(RSD,n=22) and repeatability limits (r) were ±0.01%,0.0030%～0.0050%, 0.0369%～0.0701% and 0.008%～0.014%, respectively. Comparing with YS/T 562-2009,the method is more accurate and precise. |
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