Published 1992
| Version v1
Miscellaneous
A study of Cr(VI) and Cr(III) reduction in acid medium
- 1. Universidad Autonoma de Zacatecas (Mexico). Centro Regional de Estudios Nucleares
- 2. Universidade Estadual de Campinas, SP (Brazil). Inst. de Quimica
- 3. Universidad Nacional Autonoma de Mexico, Mexico City (Mexico)
Description
The distribution of the hydrolytic species of Cr(VI) in aqueous solution depends on the pH and the concentration of Cr(VI) in solution. These same factors also affect the production of Cr(III). This study reports the effect of varying the acid concentration from 10-5 M to 2 M on the reduction of 10-6 M 51 Cr(VI) as a function of time. Species separation was by paired anionic and cationic exchange. The results show that the quantity of Cr(VI) initially present decreases with time, the decrease being more rapid as the concentration of acid increases, producing several different Cr(III) species. (author)
Additional details
Additional titles
- Original title (Portuguese)
- Um estudo de reducao de Cr(IV) a Cr(III) em meio acido
Publishing Information
- Imprint Title
- Proceedings of the 4. General Congress on Nuclear Energy. v. 2
- Imprint Pagination
- 429 p.
- Journal Page Range
- p. 871-873.
Conference
- Title
- 4. General Congress on Nuclear Energy.
- Dates
- 5-9 Jul 1992.
- Place
- Rio de Janeiro, RJ (Brazil).
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 23077849
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- AQUEOUS SOLUTIONS; CHROMIUM IONS; CHROMIUM 51; DILUTION; HYDROLYSIS; ION EXCHANGE; PH VALUE; REDUCTION
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; CHARGED PARTICLES; CHEMICAL REACTIONS; CHROMIUM ISOTOPES; DAYS LIVING RADIOISOTOPES; DECOMPOSITION; DISPERSIONS; ELECTRON CAPTURE RADIOISOTOPES; EVEN-ODD NUCLEI; HOMOGENEOUS MIXTURES; INTERMEDIATE MASS NUCLEI; IONS; ISOTOPES; MIXTURES; NUCLEI; RADIOISOTOPES; SOLUTIONS; SOLVOLYSIS
Optional Information
- Notes
- Imprint:Anais do 4. Congresso Geral de Energia Nuclear. v. 2.