Mass Spectrometric Study of the Reactions of BF3(g) with BCl3(g), B(OH)3(g), and B2O3(1)
| Autor: | Dino R. Bidinosti, Richard F. Porter, K. F. Watterson |
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| Rok vydání: | 1962 |
| Předmět: | |
| Zdroj: | The Journal of Chemical Physics. 36:2104-2108 |
| ISSN: | 1089-7690 0021-9606 |
| DOI: | 10.1063/1.1732837 |
| Popis: | Exchange reactions of halogen and hydroxyl with BX3(g) have been studied mass spectrometrically. The major product produced by the reaction of BF3(g) with boric acid at 25°C and pressures of the order of 10—6 atm is B(OH)F2(g). The species B(OH)2F(g) is also formed at higher temperatures when B(OH)3(g) is observable. Equilibria involving the reactions 13BF3(g)+23BCl3(g)=BFCl2(g),23BF3(g)+13BCl3(g)=BF2Cl(g),13BF3(g)+23B(OH)3(g)=B(OH)2F(g), and 23BF3(g)+13B(OH)3(g)=B(OH)F2(g), have been studied as a function of temperature. Heats of formation at 298°K for BFCl2(g), BF2Cl(g), B(OH)2F(g), and B(OH)F2(g) are found to be —154.1±1.0, —211.9±2.0, —249.8±2.5, and —260.2±2.5 kcal/mole, respectively.Reactions of BF3(g) with B2O3(l) have also been studied at pressures between 10—6 and 10—3 atm and temperatures between 400 and 1000°K. Results are consistent with published data from studies with BF3 at pressures near 1 atm and show that (BOF)3(g) is the primary product at both pressure extremities. For the reaction BF3... |
| Databáze: | OpenAIRE |
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