Rotating-bomb combustion calorimetry

IMR = ion-molecule reactions RB = rotating-bomb combustion calorimetry RC = reaction calorimetry SB = static-bomb combustion calorimetry. 

R. C. Santos, H. P. Diogo, M. E. Minas daPiedade. The Determination of the Standard Molar Enthalpy of Formation of 4-Chlorobenzoic Acid by Micro Rotating-Bomb Combustion Calorimetry.J. Chem. Thermodynamics 1999, 31, 1417-1427. 

There is general agreement that static-bomb combustion calorimetry is inherently unsatisfactory to determine enthalpies of formation of organolead compounds2,3. Unfortunately, as shown in Table 6 only three substances have been studied by the rotating-bomb method. The experimentally measured enthalpies of formation of the remaining compounds in Table 6 were determined by reaction-solution calorimetry and all rely on AH/(PbPh4, c). 

Chemists always need to know bond energies, often for unusual combinations of elements, for which bomb combustion calorimetry experiments have never been done, partly because the appetite of conventional bomb combustion calorimeters for large samples is not easily met for rare compounds. Thus there is a need for future micro rotating-bomb calorimeters. 

W. D. Good, D. W. Scott, G. Waddington. Combustion Calorimetry of Organic Fluorine Compounds by a Rotating-Bomb Method. J. Phys. Chem. 1956, 60, 1080-1089. 

How can we assess the thermochemical data presented in Table 1 Many were obtained by static-bomb calorimetry. Regrettably, this technique is clearly unsuitable to deal with these substances due to the ill-defined composition of the combustion products (see the discussion in References 13 and 28). The formation of nonstoichiometric oxides upon combustion all but precludes the experimental rigor demanded of the combustion calorimetrist. This fact, by itself, allows us to question the reliability of the values shown for all of the trialkyl compounds and for triphenylantimony. Although the results for triphenylbismuth found by static and rotating-bomb calorimetry overlap within their error bars, this has been suggested to be fortuitous ... 

In recent years, with the development of rotating-bomb calorimetry and the refinement of thermodynamic corrections for the combustion process for nitrogen and sulphur containing organic compounds, a number of accurate heats of combustion of heterocyclic compounds have been determined. 

Mortimer and Sellers 123) measured the heat of combustion using rotating-bomb calorimetry Ph3As was burned in O2, in the presence of aqueous sodium hydroxide. The product was a homogeneous solution containing sodium arsenite, sodium arsenate, sodium carbonate, and sodium hydroxide. After analyzing the solution, corrections were made to allow for the heat effects due to formation of sodium carbonate and sodium arsenate. For the ideal reaction,... 

Combustion or bomb calorimetry is used primary to derive enthalpy of fonuation values and measurements are usually made at 298.15 K. Bomb calorimeters can be subdivided into tluee types (1) static, where the bomb or entire calorimeter (together with the bomb) remains motionless during the experiment (2) rotating-... 

W. N. Hubbard, C. Katz, and G. Waddington, A rotating combustion bomb for precision calorimetry. Heats of combustion of some sulfur-containing compounds,. Phys. Chem. 58 142-152 (1954). 

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