Authors:Xing Xiaoling, Xue Liang, Zhao Fengqi, Yi Jianhua, Gao Hongxu, Xu Siyu, Pei Qing, Hao Haixia, and Hu Rongzu
as RDX and HMX. Its preparation [ 2 , 3 ], properties [ 4 , 5 ], and thermal behavior [ 6 , 7 ] have been reported widely.
In the present article, we reported its enthalpy of dissolution in ethyl acetate and acetone, and four kinds of
Authors:Chun-Chin Huang, Jiou-Jhu Peng, Sheng-Hung Wu, Hung-Yi Hou, Mei-Li You, and Chi-Min Shu
Cumene hydroperoxide (CHP) being catalyzed by acid is one of the crucial processes for producing phenol and acetone globally.
However, it is thermally unstable to the runaway reaction readily. In this study, various concentrations of phenol and acetone
were added into CHP for determination of thermal hazards. Differential scanning calorimetry (DSC) tests were used to obtain
the parameters of exothermic behaviors under dynamic screening. The parameters included exothermic onset temperature (T0), heat of decomposition (ΔHd), and exothermic peak temperature (Tp). Vent sizing package 2 (VSP2) was employed to receive the maximum pressure (Pmax), the maximum temperature (Tmax), the self-heating rate (dT/dt), maximum pressure rise rate ((dP/dt)max), and adiabatic time to maximum rate ((TMR)ad) under the worst case. Finally, a procedure for predicting thermal hazard data was developed. The results revealed that phenol
and acetone sharply caused a exothermic reaction of CHP. As a result, phenol and acetone are important indicators that may
cause a thermal hazard in the manufacturing process.
Authors:Yi-Ming Chang, Mei-Li You, Chien-Hung Lin, Siou-Yuan Wu, Jo-Ming Tseng, Chun-Ping Lin, Yaw-Long Wang, and Chi-Min Shu
Acetone (CH 3 COCH 3 ), also known as propanone, dimethyl ketone or 2-propanone, is the simplest representative of the ketones industrially [ 1 , 2 ]. For the high volatility and readily soluble properties in
Authors:Chun-Ni Fan, Cheng-Hua Xu, Chuan-Qi Liu, Zun-Yu Huang, Jian-Ying Liu, and Zhi-Xiang Ye
to mono, di and triacetyl esters [ 13 ], wherein the triacetin is known to have some applications going from cosmetics to fuel additive. It has been discovered that glycerol can be acetylized with acetone ( Scheme 1 ) to produce the branched oxygen
Authors:Michael Ramírez, Hilsamar Félix-Rivera, Rhaisa Sánchez-Cuprill, and Samuel Hernández-Rivera
Triacetone triperoxide (TATP), also known as acetone peroxide, is a powerful homemade energetic compound, highly unstable
and not detectable by traditional detection technologies. The calorimetric profiles of TATP mixtures with TNT, ammonium nitrate,
and nitroguanidine were evaluated and compared to pure materials. Raman spectroscopy was used to identify possible interactions
between mixture components that may arise on contact. Typical results show a shift of the TATP decomposition temperature to
higher temperatures, as well as decomposition of the nitrocompound initiated by TATP decomposition. The vibrational spectra
were used as spectroscopic signatures for these mixtures, which can be used to understand detection challenges and for the
development of desensitization approaches.
Authors:Rattanai Baitahe, Naratip Vittayakorn, and Banjong Boonchom
phosphate, CuHPO 4 ·H 2 O, has led us to search of new synthesis routes on organic solvent media. Organic molecules, methanol, ethanol, or acetone are widely used in the chemical synthesis, play an important role in shaping inorganic microcrystals and can
A radiotracer based method for the determination of the rate of expel of a swelling agent from a swelling agent saturated polymer foil induced by a second organic liquid (i.e., blowing agent for foaming of polymers) has been set up and tested. The method was applied to acetone swollen polyetherimide (PEI) foil and 1,1,1-trichloroethane and ethanol (blowing agents) systems. By combining the results of radiotracer measurements with those obtained by measuring foil weights, the amount of the respective blowing agents that replaced acetone in the PEI foil was determined.
Neutron activation analysis was used to study the dechlorination of transformer oils containing 2000 ppm of polychlorinated biphenyls by solvent extraction with acetone. The distribution coefficients of PCBs between acetone and oil have been measured and they vary from 1.25 to 1.45. The concentration of PCBs in the oil can be reduced from 2000 ppm to less than 25 ppm in five extraction cycles.
The molar heat capacities
of the pure samples of acetone and methanol, and the azeotropic mixture composed
of acetone and methanol were measured with an adiabatic calorimeter in the
temperature range 78–320 K. The solid–solid and solid–liquid
phase transitions of the pure samples and the mixture were determined based
on the curve of the heat capacity with respect to temperature. The phase transitions
took place at 126.160.68 and 178.961.47 K for the sample of
acetone, 157.790.95 and 175.930.95 K for methanol, which were
corresponding to the solid–solid and the solid–liquid phase transitions
of the acetone and the methanol, respectively. And the phase transitions occurred
at 126.580.24, 157.160.42, 175.500.46 and 179.740.89
K corresponding to the solid–solid and the solid–liquid phase
transitions of the acetone and the methanol in the mixture, respectively.
The thermodynamic functions and the excess thermodynamic functions of the
mixture relative to standard temperature 298.15 K were derived based on the
relationships of the thermodynamic functions and the function of the measured
heat capacity with respect to temperature.