Recently, in the literature, loss drying and thermogravimetric methods have not been recommended for the drying of foods containing high sugars contents due to the release of volatiles from decomposition reactions
together with the water contained in the sample.
Because the oxygen balance (OB percent; vide infra) for nitroboroxine is less than zero percent, there are two possible decomposition reactions
depending on how the oxygen rearranges.
Generally, catalysts are used in order to accelerate the decomposition reactions
. The applied catalysts in polyurethane recycling include bases like amines, hydroxides, alkoxides, and Lewis acids, leading to different extension in secondary reaction.
Compared with the direct decomposition reactions
, the conversion of more nitrogen-containing species should result from the attack of some radicals (H and aliphatic radicals, etc.), forming nitrile and amino species at lower pyrolysis temperatures.
(ii) Isomerization and decomposition reactions
occur at higher temperatures; C[O.sub.2] and CO can be released at this stage.
In general, phase transitions, dehydration, reduction, and decomposition reactions
produce endothermic effects, whereas crystallization, oxidations, and some decomposition reactions
produce exothermic effects .
This volume details tandem mass spectrometry for the analysis of lipids (focusing on animal systems), explaining the mechanism of decomposition reactions
related to lipid structures.
The crystalline size of the Ni after reduction, in case of pure Ni based catalysts, was linked significantly to the catalytic activity of these catalysts for CH4 decomposition reactions
. Moreover, the highest carbon as well as H2 yields was reported over the crystalline size of around 10.8 nm while relatively lower yields were reported in case of crystalline size of 20 nm and further increase in crystalline size to about 24 nm showed very low activity while crystalline size of 26 nm led to total deactivation.
The apparent activation energy decreases with the decrease of particle size, which is consistent with the results of the reaction of the nanoparticles in solutions [15-17], the thermal decomposition reactions
of the nanoparticles [19-22], and the reduction reactions of the nanoparticles [18, 23].
High temperature values, typically above 573 K, cause decomposition reactions
of esters formed (DEMIRBAS, 2007; IMAHARA et al., 2008; KASIM et al., 2009; VIEITEZ et al., 2009) and can favor backward reaction of glycerol (AIMARETTI et al., 2009; ANITESCU et al., 2008) with products of reaction and may cause product degradation, thus decreasing the production of fatty acid esters.