Semimicrodetermination of tantalum with selenous acid
Analytical Chemistry
By: F. S. Grimaldi and M. M. Schnepfe
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Abstract
Tantalum is separated and determined gravimetrically by precipitation with selenous acid from a highly acidic solution containing oxalic and tartaric acids. The method is selective for the determination of up to 30 mg. of tantalum pentoxide, and tolerates relatively large amounts of scandium, yttrium, cerium, titanium, zirconium, thorium, vanadium, niobium, molybdenum, tungsten, uranium, iron, aluminum, gallium, tin, lead, antimony, and bismuth. The separation of tantalum from niobium and titanium is not strictly quantitative, and correction is made colorimetrically for the small amounts of niobium and titanium co-precipitating with the tantalum. The method was applied to the determination of tantalum in tantaloniobate ores.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Semimicrodetermination of tantalum with selenous acid |
| Series title | Analytical Chemistry |
| DOI | 10.1021/ac60144a056 |
| Volume | 30 |
| Issue | 12 |
| Year Published | 1958 |
| Language | English |
| Publisher | ACS Publications |
| Description | 4 p. |
| First page | 2046 |
| Last page | 2049 |
| Google Analytic Metrics | Metrics page |