| Continuous Determination of Zinc and Rare-earth Amounts in Rare-earth Zinc Oxide |
| |
| DOI： |
| Key Words: rare-earth zinc oxide；EDTA titrant replacement；continuous determination |
| Author Name | Affiliation | | Li Zhicheng | Henan Tyre Factory |
|
| Hits: 923 |
| Download times: 910 |
| Abstract: |
| The continuous determination of zinc amd rare-earth amounts in rare-earth zinc oxide was investigarcd.The iron，aluminium and copper ions were respectively screened by ascorbic acid，sulfosalicylic acid and thiourea in an acidulous medium；the total amounrs of zinc and rare-earth were determined by titrating with EDTA titrant in hexamine buffer solution with 5.5pH till the xylenol orange indicator discolored；then EDTA in the rare-earth complex was replaced with ammonia fluoride，and the amount of rare-earth was determined with the standard zinc solurion.The method featured reliable principle，simple operation，fast determination and accurate results. |
|
View Full Text
View/Add Comment Download reader |
| Close |
