Abstract
Heterogeneous equilibria in the manganese-carbamide-sulfuric acid-water quaternary system at 25°C are studied using the solubility method. The concentration boundaries are determined for crystallization of the initial solid components, eutectic compositions of the ternary systems, and binary compounds formed in the carbamide-sulfuric acid-water and carbamide-manganese sulfate-water systems, as well as for new compounds simultaneously containing carbamide, manganese sulfate, and sulfuric acid at a 1: 4: 1 and 1: 2: 1 ratios.
Similar content being viewed by others
References
P. A. Manorik, Mixed-Ligand Biocoordination Metal Compounds in Chemistry, Biology, and Medicine (Naukova Dumka, Kiev, 1991) [in Russian].
K. Sulaimankulov, Compounds of Carbamide with Inorganic Salts (Ilim, Frunze, 1971) [in Russian].
N. N. Nurakhmetov and B. A. Beremzhanov, Zh. Neorg. Khim. 23, 504 (1978).
R. Sh. Erkasov, A. K. Tashenov, R. G. Ryskalieva, and Z. M. Karataeva, Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol. 41(5), 102 (1998).
R. Sh. Erkasov, R. M. Nesmeyanova, R. S. Orazbaeva, and S. M. Bolysbekova, Zh. Neorg. Khim. 58, 213 (2013).
V. A. Klimova, The Fundamentals of Organic Microanalysis (Nauka, Moscow, 1975) [in Russian].
G. Schwarzenbach and H. Flaschka, Die Komplexometrische Titration (Ferdinand Enke, Stuttgart, 1965).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © R.Sh. Erkasov, R.M. Nesmeyanova, A. Kolpek, G.G. Abdullina, 2014, published in Zhurnal Neorganicheskoi Khimii, 2014, Vol. 59, No. 6, pp. 786–788.
Rights and permissions
About this article
Cite this article
Erkasov, R.S., Nesmeyanova, R.M., Kolpek, A. et al. Interaction in the manganese sulfate-carbamide-sulfuric acid-water system at 25°C. Russ. J. Inorg. Chem. 59, 606–608 (2014). https://doi.org/10.1134/S0036023614060060
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0036023614060060