Dissolution potential of uni-univalent electrolytes in methanol and ethanol

Mrs., H.L. Girdhar; Gohil, Kuldip; Matta, Roger

doi:10.1016/s0022-0728(81)80513-x

Cited by 2 publications

(3 citation statements)

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“…On increasing the reaction temperature, the solvation effect on Na + is decreased. 43 As a result, the relative amount of R-MnO(OH) was decreased at the reaction temperature of 60 °C. R-MnO(OH) was not formed in the Na + system when NaOH was mixed with sodium permanganate in water before it was added to aqueous ethanol solution.…”

Section: Discussionmentioning

confidence: 97%

“…The dissolution and solvation of NaOH in aqueous ethanol solution is an exothermic process. On increasing the reaction temperature, the solvation effect on Na + is decreased . As a result, the relative amount of α-MnO(OH) was decreased at the reaction temperature of 60 °C.…”

Section: Discussionmentioning

confidence: 99%

“…α-MnO(OH) was not formed in the Na + system when NaOH was mixed with sodium permanganate in water before it was added to aqueous ethanol solution. The higher solvating ability of ethanol than water, the lower cation mobility in ethanol than in water, and the stronger hydrogen bonding between water and ethanol than between water molecules , might be some of the reasons that α-MnO(OH) was not formed in the Na + system when Method 2 was used.…”

Section: Discussionmentioning

confidence: 99%

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Syntheses of Birnessites Using Alcohols as Reducing Reagents: Effects of Synthesis Parameters on the Formation of Birnessites

Luo

Suib

1999

Chem. Mater.

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This study shows that synthetic birnessite, an octahedral layered manganese oxide material called OL-1 can be synthesized with Na + , K + , Na + /Mg 2+ , or K + /Mg 2+ ions as interlayer cations by redox reactions between permanganate and alcohols in a strong basic media. The synthesis processes were followed by powder X-ray diffraction (XRD) studies. OL-1 samples have been characterized by XRD, chemical analysis, average oxidation states measurements, and scanning electron microscopy studies. Results show that all OL-1 samples have an interlayer spacing of ∼7.0 Å. The average oxidation states of manganese fall in a range of 3.60-3.70. The chemical compositions for typical Na-OL-1 and K-OL-1 are Na 4.7 Mn 14 O 27.7 ‚8.7H 2 O and K 4.6 Mn 14 O 27.9 ‚6.6H 2 O, respectively. R-MnO(OH) coexists with Na-OL-1 in the synthesis where NaMnO 4 aqueous solution is added to the solution containing ethanol, water, and sodium hydroxide. When Mg(MnO 4 ) 2 was used as the oxidant, more Mg 2+ ions were accommodated in OL-1 than in previous reports. The interlayer space is propped opened by intercalating hexylammonium ions between the layers, confirming the layered structure.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%