Enthalpy of Formation of Gaseous Nitryl Fluoride FNO2
Contradictory literature data on thermal stability, some methods of synthesis, and thermodynamic characteristics of nitryl fluoride have been considered and analyzed. Reliable estimates of reaction enthalpies have been obtained: 2FNO 2 = 2FNO + O 2 , Δ r H °(0) ≥ 173.5, NO 2 + 2CoF 3 (c) = FNO 2 + C...
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| Veröffentlicht in: | Russian journal of inorganic chemistry 2023-10, Vol.68 (10), p.1471-1474 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Contradictory literature data on thermal stability, some methods of synthesis, and thermodynamic characteristics of nitryl fluoride have been considered and analyzed. Reliable estimates of reaction enthalpies have been obtained: 2FNO
2
= 2FNO + O
2
, Δ
r
H
°(0) ≥ 173.5, NO
2
+ 2CoF
3
(c) = FNO
2
+ Co
2
F
5
(c), Δ
r
H
°(0) = –7.4; 3/2N
2
O
4
+ NaF(c) = FNO
2
+ NO + NaNO
3
(c), Δ
r
H
°(0) = 11.3 kJ/mol. A new value of the enthalpy of formation of nitryl fluoride Δ
f
H
°(FNO
2
(g), 0) = –161 ± 15 kJ/mol has been recommended. For the interaction of FNO
2
with V
2
O
5
(c) as an example, the impossibility of formation of crystalline vanadium pentafluoride has been demonstrated. |
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| ISSN: | 0036-0236 1531-8613 |
| DOI: | 10.1134/S003602362370033X |