TY - JOUR
T1 - Research on thermal decomposition of trinitrophloroglucinol salts by DSC, TG and DVST
AU - Liu, Rui
AU - Zhang, Tonglai
AU - Yang, Li
AU - Zhou, Zunning
AU - Hu, Xiaochun
PY - 2013/5
Y1 - 2013/5
N2 - The thermal decomposition of the four nitrogen-rich salts of ammonia (NH4), aminoguanidine (AG), carbohydrazide (CHZ) and 5-aminotetrazo (ATZ) based on trinitrophloroglucinol (H3TNPG) was investigated using the differential scanning calorimetry (DSC), thermogravity (TG), and dynamic vacuum stability test (DVST). DSC and TG methods research the complete decomposition, while DVST method researches the very early reaction stage. The peak temperatures of DSC curves are consistent with the temperatures of maximum mass loss rates of TG curves. The apparent activation energies of these H 3TNPG-based salts obtained by DSC and DVST have the same regularity, i.e., (ATZ)(H2TNPG)·2H2O < (CHZ)(HTNPG) ·0.5H2O < NH4(H2TNPG) < (AG)(H2TNPG). The thermal stability order is (ATZ)(H 2TNPG)·2H2O < (CHZ)(HTNPG)·0.5H 2O < (AG)(H2TNPG) < NH4(H 2TNPG), which was evaluated by DVST according to the evolved gas amount of thermal decomposition. DVST can monitor the real-time temperature and pressure changes caused by thermal decomposition, dehydration, phase transition and secondary reaction, and also evaluate the thermal stability and kinetics. [Figure not available: see fulltext.]
AB - The thermal decomposition of the four nitrogen-rich salts of ammonia (NH4), aminoguanidine (AG), carbohydrazide (CHZ) and 5-aminotetrazo (ATZ) based on trinitrophloroglucinol (H3TNPG) was investigated using the differential scanning calorimetry (DSC), thermogravity (TG), and dynamic vacuum stability test (DVST). DSC and TG methods research the complete decomposition, while DVST method researches the very early reaction stage. The peak temperatures of DSC curves are consistent with the temperatures of maximum mass loss rates of TG curves. The apparent activation energies of these H 3TNPG-based salts obtained by DSC and DVST have the same regularity, i.e., (ATZ)(H2TNPG)·2H2O < (CHZ)(HTNPG) ·0.5H2O < NH4(H2TNPG) < (AG)(H2TNPG). The thermal stability order is (ATZ)(H 2TNPG)·2H2O < (CHZ)(HTNPG)·0.5H 2O < (AG)(H2TNPG) < NH4(H 2TNPG), which was evaluated by DVST according to the evolved gas amount of thermal decomposition. DVST can monitor the real-time temperature and pressure changes caused by thermal decomposition, dehydration, phase transition and secondary reaction, and also evaluate the thermal stability and kinetics. [Figure not available: see fulltext.]
KW - DVST
KW - H3TNPG-based salts
KW - Kinetic parameters
KW - Thermal decomposition
KW - Thermal stability
UR - http://www.scopus.com/inward/record.url?scp=84875727447&partnerID=8YFLogxK
U2 - 10.2478/s11532-013-0205-8
DO - 10.2478/s11532-013-0205-8
M3 - Article
AN - SCOPUS:84875727447
SN - 1895-1066
VL - 11
SP - 774
EP - 781
JO - Central European Journal of Chemistry
JF - Central European Journal of Chemistry
IS - 5
ER -