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| Determination ofTitanium Content in Tungsten-titanium Alloys by Ammonium Ferric SulfateTitrimetry |
| Received:December 07, 2016 Revised:January 15, 2017 |
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| DOI：doi:10.3969/j.issn.2095-1035.2017.03.017 |
| KeyWord:tungsten-titanium alloys; titanium; titrimetry; ammonium ferric sulfate;precipitation separation |
| Author | Institution |
| YANG Junhong |
西部金属材料股份有限公司，陕西宝鸡 |
| LI Tuo |
西部金属材料股份有限公司，陕西宝鸡 |
| ZHAI Tongde |
西部金属材料股份有限公司，陕西宝鸡 |
| LI Rong |
西部金属材料股份有限公司，陕西宝鸡 |
| WEI Dong |
西部金属材料股份有限公司，陕西宝鸡 |
| LI Juan |
西部金属材料股份有限公司，陕西宝鸡 |
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| Abstract: |
| A new method for the determination of titanium in Tungsten-titanium alloys byammonium ferric sulfate titrimetry was established. The sample was dissolved in HNO3-HF solution. Titanium was precipitated with iron as the carrier in NaOH(100 g/L) alkaline medium, then the precipitate was dissolved in hydrochloric acid. Under acidic conditions, Ti4+ was reduced to Ti3+ by aluminum metal, and Ti3+ was titrated by ammonium ferric sulfate standard solution with thiocyanate as indicator. The method was applied to the real samples and RSD (n=11)of 0.40% was achieved with the recovery rate from 99.8% to101%. |
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