Balaprasad Ankamwar, Omprakash Yemul, Shashikant Deshmukh, "Comparative Study on the Stability of Mn(III) Ion Prepared by Different Methods in H2SO4 and H3PO4 Media", Journal of Chemistry, vol. 6, Article ID 736463, 10 pages, 2009. https://doi.org/10.1155/2009/736463
Comparative Study on the Stability of Mn(III) Ion Prepared by Different Methods in H2SO4 and H3PO4 Media
The time-periods required for the % of Mn(III) to disappear from the solution and the half-life of Mn(III) was studied in 7 mol dm-3 H2SO4 and 7 mol dm-3 H3PO4 media at ambient conditions at three different Mn(III) concentrations viz. 4.98, 1.94 and 1.04 mmol dm-3 using spectrophotometric method. Half-life periods in the presence of 7 mol dm-3 H2SO4 are more than those in presence of 7 mol dm-3 H3PO4. The time-periods required for the 1% of Mn(III) to disappear that for H2SO4 medium from 1.94 mmol dm-3, Mn(III) solutions prepared from solid form is about 20 days, 10 days for electro-generated Mn(III) and 6 days for chemical oxidation method.
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