Indexing
All Issues
Submission
Author Guidelines
Reviewers
Editorial Members
Publication Fee
Vol.3 , No. 3, Publication Date: Jun. 7, 2016, Page: 13-18
 - Fe (II) - Na(H)CIO<sub>4</sub>-H<sub>2</sub>O&description=By the classic method of Clarke Nicholas studied the oxidation potential of hydroxyl complexation of Fe (III) in the system: Fe (III) -Fe (II) - Na(H)CIO<sub>4</sub>-H<sub>2</sub>O, in the medium Na(H)CIO<sub>4</sub>. The experimental curves of the oxidation potential of one of the variables: pH, rS0 and PCR (negative logarithm of the concentration parameters) at constant rest. Analysis of the slope of the experimental curves of the method according to the theory, showed the formation of coordination compounds of the following: [Fe(OH)(H<sub>2</sub>O)<sub>5</sub>]<sup>2+</sup>, [Fe<sub>2</sub>(OH)<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>4+</sup>, [Fe(OH)<sub>2</sub>(H<sub>2</sub>O)<sub>4</sub>]<sup>+</sup> and [Fe(OH)<sub>3</sub>(H<sub>2</sub>O)<sub>3</sub>]<sup>0</sup>. The concentration of anions CIO<sub>4</sub>- affects iron hydrolysis, stability of the complexes, but not their makeup. By the method of successive approximations of experimental and Yusupov theoretical oxidizing function and using computer programs «SigmaPlot -10.0», «Excel» calculated stability constants are formed in the system of Fe (III) hydrolysis of complex forms.&picture=http://www.aascit.org/aascit/decorators/img/journal/905.jpg)
| [1] | M. M. Rahimova, Department of Physical and Colloid Chemistry, Tajik National University, Dushanbe, Republic of Tajikistan. |
| [2] | D. A. Davlatshoeva, Department of Physical and Colloid Chemistry, Tajik National University, Dushanbe, Republic of Tajikistan. |
| [3] | E. F. Fayzulloev, Department of Physical and Colloid Chemistry, Tajik National University, Dushanbe, Republic of Tajikistan. |
| [4] | A. K. Ismatov, Scientific Research Institute, Tajik National University, Dushanbe, Republic of Tajikistan. |
By the classic method of Clarke Nicholas studied the oxidation potential of hydroxyl complexation of Fe (III) in the system: Fe (III) -Fe (II) - Na(H)CIO4-H2O, in the medium Na(H)CIO4. The experimental curves of the oxidation potential of one of the variables: pH, rS0 and PCR (negative logarithm of the concentration parameters) at constant rest. Analysis of the slope of the experimental curves of the method according to the theory, showed the formation of coordination compounds of the following: [Fe(OH)(H2O)5]2+, [Fe2(OH)2(H2O)10]4+, [Fe(OH)2(H2O)4]+ and [Fe(OH)3(H2O)3]0. The concentration of anions CIO4- affects iron hydrolysis, stability of the complexes, but not their makeup. By the method of successive approximations of experimental and Yusupov theoretical oxidizing function and using computer programs «SigmaPlot -10.0», «Excel» calculated stability constants are formed in the system of Fe (III) hydrolysis of complex forms.
Keywords
Iron, Hydroxyl Complexes, Oxidation Potential, Iron Hydrolysis, the Electrolytic Fund, Hydrolysis Constant
Reference
| [01] | Prokopenko V. A Localization of iron-oxygen processes of formation of nanoscale structures in Fe0 system – H2O - O2. Coll. Scien. tr. "Nanosystems, nanomaterials, nanotechnology." Minsk National Academy of Sciences. 2005. - Vol.3. -№ 2. - S. 511-519. |
| [02] | Pyhteev O. J The hydrolytic polymerization of iron (III) in partially neutralized nitrate solutions. Journal of Inorganic Chemistry. 1999. - V. 44. - № 4. 549-555. |
| [03] | Pyhteev O. J. Hydrolysis aquacomplexes of iron (III). Journal of Application Chemistry. 1999. - T. 72. - № 1. 11-21. |
| [04] | Prokopenko V. A Effect of pH values on the formation of structures in Fe0 system - H2O - O2. Nanostructured materials science. 2008. - №1.59-72. |
| [05] | Sigel A. Iron Transport and Storage in Microorganisms. Plants and Animals. Metal Ions in Biological Systems. 1998. -Vol. 35. |
| [06] | Konhauser K. O. Bacterial iron biomineralisation in nature. FEMS Microbiol. Rev. 1997. - V. 20. - No. 3 - 4. 315-326. |
| [07] | Pierre J. L. Iron and activated oxygen species in biology: the basic chemistry. Moscow. Fontecave BioMetals. 1999. - V. 12. 195-199. |
| [08] | Davydov D. Y Influence of anions on iron hydrolysis to form polynuclear cations hydroxyl complexes in solution. Preprint IREP - 28. Minsk National Academy of Sciences. 2000 -24. |
| [09] | Zyuzikov V. E Studying the behavior of iron (III) ions in sulfate solutions in the presence of potassium ions. Journal of Inorganic Chemistry. 1990. - T. 35. - Number 11. 2786–2790. |
| [10] | Goncharov G. N Investigation of the mechanism of hydrolytic precipitation in the hydrolysis of Fe (III) nitrate in solution. Journal of General Chemistry. 1978. - V. 48. - № 11. 2398-2408. |
| [11] | Davydov D. Y Hydrolysis of the ferric cations (III) hydroxyl complexes to form in the presence of polynuclear anion ClO4-, Cl-, NO3-, SO42- in the solution. Journal of Inorganic chemistry. 2005. - T. 50. - № 6. 1043-1046. |
| [12] | Nikolsky B. P., Palchevsky V. V., Pendin A. A., Yakubov H. M. Oksredmetriya. L.: Chemistry. 1975. |
| [13] | Yusupov Z. N. A method of determining the composition and formation constants of coordination compounds // PatentTJ 295. The application number 37000501 from 21.12.2000 Publ. in Bull. Number 21. 2001. |
| [14] | Yusupov Z. N., Rahimova M. M. Complex formation in redox systems. Monograph. Dushanbe: Sino TNU. 2013. |
| [15] | Faizulloev E. F., Ismailov M. A., Yusupov Z. N., Rahimova M. M. Bulletin of Tajik National University. Dushanbe. 2011. №6 (70). |
| [16] | Faizulloev E. F., Yusupov Z. N., Ismailov M. A. Proceedings of the Academy of Sciences of the Republic of Tajikistan. Dushanbe. 2010. № 4 (141). 51-59. |
| [17] | Rahimova M. M., Nurmatov T. M., Yusupov Z. N., Ismailov M. A., Faizulloev E. F. Journal of Inorganic Chemistry. 2013. No 58. 6.813-818. |
| [18] | Korjakin J. V. Angels II Pure chemicals. Moscow. Chemistry, 1974. |
| [19] | KolthoffI. M., Belger R., Stenger V. A. et al. Volumetric analysis. Moscow. Goskhimizdat, 1961. Vol. 3. |
| [20] | Charlot. Methods of Analytical Chemistry. Quantitative analysis of inorganic compounds. trnsl. from France. Lurie Y. Y. Moscow. Chemistry, 1965. |
| [21] | Suslennikova V. M., Kiselyov E. K, Guide to the preparation of titrated solutions. Leningrad. Chemistry. 1968. |
| [22] | Quick Reference physical -chemical quantities, ed. Mishchenko K. P., Ravel A. A. Leningrad. Chemistry. 1974. |
