Thermochimica Acta, Vol.352-353, 273-277, 2000
Mini-bomb combustion calorimeter
Three mini-bomb calorimeters of different types have been built with the common characteristics: 5 cm(3) of bomb volume, 10 mg of sample, similar to 420 J K-1 of energy equivalent. These calorimeters can be calibrated by the electric method with the standard deviation of the mean of 0.02%. The results of burning reference material - benzoic acid (BA39i) by using the calorimeters 2 and 3 are in agreement with the recommended value, however, that by using the calorimeter 1 is 0.24% larger. A check experiment shows that the stirring effect in this calorimeter is not enough during the heating period. The energies of combustion of C-60 and C-70 have been determined by using the calorimeter 2.