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A micro-combustion calorimeter suitable for samples of mass 10 mg to 50 mg. Application to solid compounds of C, H, and O, and of C, H, O, and N

✍ Scribed by Hermı́nio P. Diogo; Manuel E. Minas da Piedade

Book ID
102968841
Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
524 KB
Volume
27
Category
Article
ISSN
0021-9614

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✦ Synopsis

A micro-combustion calorimeter suitable for samples of mass about 10 mg to 50 mg is described. Calibration with benzoic acid led to the energy equivalent o°= (1809.82 2 0.28) J•K -1 . The calorimeter was tested by determining the standard molar enthalpies of formation at the temperature 298.15 K of salicylic acid: DfH°m{o-C6H4(OH)(CO2H), cr}= -(587.8 2 1.5) kJ•mol -1 and of urea: DfH°m(H2NCONH2, cr) = -(333.4 2 0.6) kJ•mol -1 .

📜 SIMILAR VOLUMES

Physical stability vs. chemical lability
Physical stability vs. chemical lability in microporous metal coordination polymers: a comparison of [Cu(OH)(INA)]n and [Cu(INA)2]n: INA = 1,4-(NC5H4CO2)Electronic supplementary information (ESI) available: 1. Structure determination summaries for compounds 1–3. 2. Powder X-ray diffraction patterns: (a) for 1 and (b) for 2 after prolonged heating at different temperatures, establishing framework stabilities and (c) showing transformation of polymer 2 to the molecular compound 3, after 12 h in H2O. Fig. S1: copper coordination environments in compounds 1–3. See http://www.rsc.org/suppdata/cc/b2/b201501n/
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