Published April 1989
| Version v1
Journal article
Extraction-photometric determination of niobium and tantalumusing rhodanide and triphenylguanidine
Creators
- 1. Azerbajdzhanskij Gosudarstvennyj Pedagogicheskij Inst., Baku (USSR)
Description
Mixed-ligand complexes of niobium and tantalum, readily extracted into chloroform, are formed at excess triphenylguanidine (TPG) and thiocyanate in strongly acidic solutions. The molar ratios of the components in the extracted complexes are Nb:SCN-:TPG=1:3:2 and Ta:SCN-:TPG=1:2:1. The molar absorptives of the niobium and tantalum complexes are 4.1x104 and 2.6x104 respectively. A spectrophotometric method has been developed of determining niobium and tantalum (0.12-0.009%) in the presence of each other in steel with an error of 1.2-8.4 rel.%
Additional details
Additional titles
- Original title (Russian)
- Экстракционно-фотометрическое определение ниобия и тантала с помощью роданида и трифенилгуанидина
Publishing Information
- Journal Title
- Zhurnal Analiticheskoj Khimii
- Journal Volume
- 44
- Journal Issue
- 4
- Series
- Zh. Anal. Khim.
- Journal Page Range
- 671-674
- ISSN
- 0044-4502
- CODEN
- ZAKHA
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- USSR
- INIS RN
- 20074646
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ACCURACY; CHEMICAL COMPOSITION; CHEMICAL PREPARATION; GUANIDINES; NIOBIUM; NIOBIUM COMPLEXES; QUANTITATIVE CHEMICAL ANALYSIS; SENSITIVITY; SOLVENT EXTRACTION; SPECTROPHOTOMETRY; STEELS; TANTALUM; TANTALUM COMPLEXES; THIOCYANATES
- Descriptors DEC
- ALLOYS; ANTITHYROID DRUGS; CARBON ADDITIONS; CARBONIC ACID DERIVATIVES; CHEMICAL ANALYSIS; COMPLEXES; DRUGS; ELEMENTS; IRON ALLOYS; IRON BASE ALLOYS; METALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; SEPARATION PROCESSES; SYNTHESIS; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENTS