Inzhenerno-Fizicheskii Zhurnal.
Mezhdunarodnaya Kniga, Moscow, Russian Federation.
Vol. 72.
1999.
P. 709-714
The effect of 1-hydroxyethylenediphosphonic acid on the kinetics and the mechanism of interaction of Mn3O4 with sulfuric acid solutions
The kinetics of interaction of Mn3O4 with sulfuric acid solutions and the effect of 1-hydroxyethyl-enediphosphonic acid (H5L) on this process are studied. It is found that, as the sulfuric acid concentration is increased from 0.1 to 5 N, the rate of disproportionation of Mn3O4 to MnO2 and Mn2+ ions decreases, whereas it increases with the concentration of Mn2+ ions. Upon addition of H5L, the complete dissolution of Mn3O4 occurs more rapidly. The reaction order with respect to the H+ and H3L2- ions is equal to +0.5 ± 0.1. A mechanism of promotion of dissolution of Mn3O4 by H5L is proposed.
Authors
Kishkina N.A.1
,
Gorichev I.G.
1
,
Zaitsev B.E.
2
,
Izotov A.D.3
,
Dukhanin V.S.1
Number of issue
4
Language
English
Pages
563-570
Status
Published
Link
Volume
73
Year
1999
Organizations
- 1 Moscow Stt. Open Pedagogical Univ., Moscow, Russian Federation
- 2 Russ. Univ. of Peoples' Friendship, ul. Miklukho-Maklaya 6, Moscow DSP, 117198, Russian Federation
- 3 Kurnakov Inst. Gen. Inorg. Chem., Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117907, Russian Federation
Date of creation
19.10.2018
Date of change
19.10.2018
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CIM Bulletin.
Vol. 92.
1999.
P. 75-80