Flammability, thermal stability, and phase change characteristics of several trialkylimidazolium salts was written by Fox, Douglas M.;Awad, Walid H.;Gilman, Jeffrey W.;Maupin, Paul H.;De Long, Hugh C.;Trulove, Paul C.. And the article was included in Green Chemistry in 2003.Safety of 1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V) The following contents are mentioned in the article:
Room temperature ionic liquids (RTILs) have emerged as tunable and potentially “greener” solvents for a multitude of applications. To investigate the solvent properties and potential use as a thermal fluid, a study was initiated to determine the effects of anion type, C-2 hydrogen substitution, and alkyl chain length on the flammability, thermal stability, and phase change characteristics of 1,2,3-trialkylimidazolium room temperature ionic liquids A Setaflash flash point apparatus was used to determine the flammabilities of the RTILs. No flash points were detected for any of the imidazolium based RTILs below 200°, the maximum temperature of the instrument. The thermal stabilities of the RTILs were measured using the technique of thermogravimetric anal. The 1,2,3-trialkylimidazolium compounds exhibit slightly higher thermal stabilities than the comparable 1,3-dialkylimidazolium compounds; RTILs with nucleophilic anions decompose about 150° lower than RTILs with bulky fluoride containing anions; the alkyl chain length does not have a large effect on the thermal stability of the RTILs; and the pyrolysis decomposition exhibits higher thermal stabilities via a different mechanism than the oxidative decomposition In addition, it was found that although the calculated onset temperatures were above 350°, significant decomposition does occur 100° or more below these temperatures The phase change behaviors of several imidazolium based RTILs were characterized by differential scanning calorimetry. The m.ps. of the RTILs increased with increasing alkyl chain length. Most of the salts studied exhibited significant undercooling, which decreased as the length of the alkyl chain was increased. The hexafluorophosphate and bromide RTILs exhibited polymorphic and liquid crystalline behaviors as the alkyl chain length was increased above C10. The clearing point temperatures increased more rapidly with alkyl chain length than the m.p. temperatures This study involved multiple reactions and reactants, such as 1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 157310-73-1Safety of 1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V)).
1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 157310-73-1) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. Imidazole derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division.Safety of 1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V)
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem