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Concentrated solutions of H3PO4(aq) are used as electrolytes in fuel cells operating typically at temperatures from 425 to 550 K. Phosphate ions, as water softeners and buffering agents, can be present in power cycles where temperatures may reach beyond the critical point of water.
Concentrated solutions of H3PO4 (aq) are used as electrolytes in fuel cells operating typically at temperatures from 425 to 550 K. Phosphate ions, as water softeners and buffering agents, can be present in power cycles where temperatures may reach beyond the critical point of water.
Solution A — dissolve 40 g ammonium molybdate tetrahydrate in 400 ml hot water and cool to room temperature. Solution B — dissolve 2 g ammonium metavanadate in 250 ml hot deionized water. Cool to room temperature and add 330 ml of concentrated (36%) hydrochloric acid. Cool to room temperature.
1 Φεβ 2007 · At temperatures and pressures in the neighborhood of the critical point of water, the results show the expected dependence of partial molar volume and partial molar heat capacity of...
11 Ιαν 2007 · This made it possible to describe the standard thermodynamic properties, particularly the standard chemical potential, of both molecular and ionized phosphoric acid at temperatures up to at least 623 K and at pressures up to 200 MPa.
25 Μαρ 2021 · The acid has a boiling point of 300 o C at 760 mmHg; The acid has a density of 2.0g g/ml at 25 o C; Molecular weight of polyphosphoric acid is 98.0; It is synthesized by reacting phosphoric acid with phosphorous (V) oxide. Polyphosphoric acid is weaker than sulphuric acid and nitric acid and has no oxidizing power. Reactivity Profile Of ...
29 Ιουλ 2024 · This boiling point calculator tells you how to calculate the boiling point of most common substances at an arbitrary pressure, based on the Clausius–Clapeyron relation. Whether you want to analyze water, ethanol, or ammonia, simply provide some reference values, and this calculator will do the work for you.
