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https://hdl.handle.net/10216/94804
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DC Field | Value | Language |
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dc.creator | Maria D M C R Ribeiro da Silva | |
dc.creator | Goncalves, MV | |
dc.creator | Manuel J S Monte | |
dc.date.accessioned | 2022-09-07T10:29:17Z | - |
dc.date.available | 2022-09-07T10:29:17Z | - |
dc.date.issued | 2010 | |
dc.identifier.issn | 0021-9614 | |
dc.identifier.other | sigarra:48517 | |
dc.identifier.uri | https://hdl.handle.net/10216/94804 | - |
dc.description.abstract | Reported in the present work are the values of the gaseous standard (p degrees = 0.1 MPa) molar enthalpies of formation of 3-hydroxybenzaldehyde (3HBA), 4-hydroxybenzaldehyde (4HBA), and 3,5-di-tert-butyl-2-hydroxybenzaldehyde (3,5DTBHBA), at T = 298.15 K. For the three compounds, the values were derived from measurements of the standard molar energies of combustion of the crystalline compounds, using a static bomb calorimeter {Delta(c)H degrees m(3HBA) = -(3298.3 +/- 1.3) kJ . mol(-1) . Delta(c)H degrees(m)(4HBA) = -(3291.8 +/- 0.9) kJ . mol(-1) . Delta(c)H degrees(m)(3, 5DTBHBA) = -(8502.6 +/- 2.9) kJ . mol(-1)}, together with the standard molar enthalpies of sublimation, at T = 298.15 K, derived from the vapour pressures measured at different temperatures using the Knudsen effusion technique {Delta(g)(cr)H degrees m(3HBA) = (100.1 +/- 0.6) kJ . mol(-1) . Delta (g)(cr)H degrees(m)(4HBA) = (102.5 +/- 0.5) kJ . mol(-1), Delta(g)(cr)H degrees(m)(3, 5DTBHBA) = (96.0 +/- 0.5) kJ . mol(-1)} | |
dc.language.iso | eng | |
dc.rights | restrictedAccess | |
dc.subject | Química física, Engenharia química | |
dc.subject | Physical chemistry, Chemical engineering | |
dc.title | Thermodynamic study on hydroxybenzaldehyde derivatives: 3-and 4-Hydroxybenzaldehyde isomers and 3,5-di-tert-butyl-2-hydroxybenzaldehyde | |
dc.type | Artigo em Revista Científica Internacional | |
dc.contributor.uporto | Faculdade de Ciências | |
dc.identifier.doi | 10.1016/j.jct.2009.10.009 | |
dc.identifier.authenticus | P-003-7WC | |
dc.subject.fos | Ciências da engenharia e tecnologias::Engenharia química | |
dc.subject.fos | Engineering and technology::Chemical engineering | |
Appears in Collections: | FCUP - Artigo em Revista Científica Internacional |
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File | Description | Size | Format | |
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48517.pdf Restricted Access | 618.95 kB | Adobe PDF | Request a copy from the Author(s) |
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