Heats of Reaction of Sodium and Potassium with Water and the Standard Heats of Formation of Aqueous Sodium and Potassium Hydroxides at 25°

1954 ◽  
Vol 76 (18) ◽  
pp. 4736-4737 ◽  
Author(s):  
Eugene E. Ketchen ◽  
W. E. Wallace
Keyword(s):  
Heats Of Formation ◽  
Aqueous Sodium ◽  
Heats Of Reaction ◽  
Sodium And Potassium

scholarly journals Sustainable and Environmentally Friendly Na and Mg Aqueous Hybrid Batteries Using Na and K Birnessites

Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 924 ◽  
Author(s):  
Francisco Gálvez ◽  
Marta Cabello ◽  
Pedro Lavela ◽  
Gregorio F. Ortiz ◽  
José L. Tirado
Keyword(s):  
Hydrothermal Synthesis ◽  
Cathode Material ◽  
Electrochemical Behavior ◽  
Environmentally Friendly ◽  
Distribution Networks ◽  
Renewable Energies ◽  
Electrochemical Cells ◽  
Aqueous Sodium ◽  
Galvanostatic Cycling ◽  
Sodium And Potassium

Sodium and magnesium batteries with intercalation electrodes are currently alternatives of great interest to lithium in stationary applications, such as distribution networks or renewable energies. Hydrated laminar oxides such as birnessites are an attractive cathode material for these batteries. Sodium and potassium birnessite samples have been synthesized by thermal and hydrothermal oxidation methods. Hybrid electrochemical cells have been built using potassium birnessite in aqueous sodium electrolyte, when starting in discharge and with a capacity slightly higher than 70 mA h g−1. Hydrothermal synthesis generally shows slightly poorer electrochemical behavior than their thermal counterparts in both sodium and potassium batteries. The study on hybrid electrolytes has resulted in the successful galvanostatic cycling of both sodium birnessite and potassium birnessite in aqueous magnesium electrolyte, with maximum capacities of 85 and 50 mA h g−1, respectively.

Heats of formation of RuO4, RuO42−, and related compounds

1969 ◽  
Vol 47 (4) ◽  
pp. 581-586 ◽  
Author(s):  
E. E. Mercer ◽  
D. T. Farrar
Keyword(s):  
Sodium Periodate ◽  
Heats Of Formation ◽  
Basic Solution ◽  
Heat Of Reaction ◽  
Kcal Mole ◽  
Heats Of Reaction ◽  
Related Compounds

The heat of reaction of ruthenium metal with bromine in basic solution, according to the equation[Formula: see text]has been measured calorimetrically. In addition, the heat of oxidation of barium ruthenate hydrate by sodium periodate to form RuO4(aq) has been determined. From these heats of reaction, and several other heats measured here, the heats of formation of several ruthenium species have been calculated. The more important of these are: Na2RuO4(aq), ΔHf = −224.1 ± 0.8; RuO42−(aq), ΔHf = −109.4 ± 1.0; RuO4(aq), ΔHf = −57.5 ± 1.1; RuO4(l), ΔHf = −57.0 ± 1.1 kcal/mole.

The Heats of Formation of Lithium, Sodium and Potassium Hydrides

1955 ◽  
Vol 77 (17) ◽  
pp. 4524-4526 ◽  
Author(s):  
Charles E. Messer ◽  
Ludwig G. Fasolino ◽  
Conrad E. Thalmayer
Keyword(s):  
Heats Of Formation ◽  
Sodium And Potassium

scholarly journals Thermodynamic Activity Quantities in Aqueous Sodium and Potassium Chloride Solutions at 298.15 K up to a Molality of 2.0 mol kg^-1.

1993 ◽  
Vol 47 ◽  
pp. 768-776 ◽  
Author(s):  
Jaakko Ilmari Partanen ◽  
Pentti Olavi Minkkinen ◽  
Siw B. Fredriksen ◽  
Johannes Dale ◽  
Björn O. Roos ◽  
...  
Keyword(s):  
Potassium Chloride ◽  
Thermodynamic Activity ◽  
Chloride Solutions ◽  
Aqueous Sodium ◽  
Sodium And Potassium

Carbonaceous Anode Materials for Non-aqueous Sodium- and Potassium-Ion Hybrid Capacitors

2021 ◽  
pp. 4127-4154
Author(s):  
Shude Liu ◽  
Ling Kang ◽  
Jian Zhang ◽  
Seong Chan Jun ◽  
Yusuke Yamauchi
Keyword(s):  
Anode Materials ◽  
Potassium Ion ◽  
Aqueous Sodium ◽  
Hybrid Capacitors ◽  
Sodium And Potassium

Thermodynamics of aqueous sodium and potassium dihydrogen orthophosphate solutions at 25°C

1973 ◽  
Vol 26 (4) ◽  
pp. 863 ◽  
Author(s):  
CW Childs ◽  
CJ Downes ◽  
RF Platford
Keyword(s):  
Sodium Salt ◽  
Potassium Salt ◽  
Osmotic Coefficients ◽  
Isopiestic Method ◽  
Potassium Dihydrogen ◽  
Aqueous Sodium ◽  
Low Concentrations ◽  
Potassium Dihydrogen Orthophosphate ◽  
Sodium And Potassium ◽  
Dihydrogen Orthophosphate

The osmotic coefficients of aqueous NaH2PO4 and aqueous KH2PO4 over the ranges 1.0-6.5 mol kg-1 for the sodium salt and 0.85-2.2 mol kg-1 for the potassium salt were determined at 25�C by the isopiestic method. Our data were combined with the data of Scatchard and Breckenridge for low concentrations in order to calculate smooth values of osmotic and activity coefficients for concentrations down to 0.1 mol kg-1.

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