Published August 1977
| Version v1
Journal article
Fluoride-pyrocatechol complex of tantalum and its use in analysis
- 1. AN Ukrainskoj SSR, Kiev. Inst. Kolloidnoj Khimii i Khimii Vody
Description
Spectrophotometric study of complex formation in the tantalum-hydrofluoric acid-pyrocatechol (H2R) system has been carried out. It is established that Ta(OH)2F2R- complex with lambdasub(max) = 305 nm is formed in this system. A photometric method is proposed for determining fluoride in niobium- and tantalum-containing solutions, based on the transformation of oxalate-pyrocatechinate complex of tantalum Ta(OH)2C2O4R- with lambdasub(max) = 397 nm into the Ts(OH)2F2R- complex. The Baer law is kept for 0.1-0.8 mg of HF in 10 ml of the final solution
Additional details
Additional titles
- Original title (Russian)
- Фторидно-пирокатехинатный комплекс тантала и его применение в анализе
Publishing Information
- Journal Title
- Zh. Anal. Khim.
- Journal Volume
- 32
- Journal Issue
- 8
- Series
- Zh. Anal. Khim.
- Journal Page Range
- 1542-1545
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 9390888
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHEMICAL COMPOSITION; CHEMICAL PREPARATION; FLUORIDES; HYDROFLUORIC ACID; LIGANDS; PYROCATECHOL; QUANTITATIVE CHEMICAL ANALYSIS; SPECTROPHOTOMETRY; TANTALUM COMPLEXES
- Descriptors DEC
- AROMATICS; CHEMICAL ANALYSIS; COMPLEXES; DEVELOPERS; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; INORGANIC ACIDS; ORGANIC COMPOUNDS; PHENOLS; POLYPHENOLS; SYNTHESIS; TRANSITION ELEMENT COMPLEXES
Optional Information
- Notes
- For English translation see the journal J. Anal. Chem. USSR.