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Published in Natan B. Vargaftik, Lev P. Filippov, Amin A. Tarzimanov, Evgenii E. Totskii, Yu. A. Gorshkov, Handbook of Thermal Conductivity of Liquids and Gases, 2020
Natan B. Vargaftik, Lev P. Filippov, Amin A. Tarzimanov, Evgenii E. Totskii, Yu. A. Gorshkov
1,3,5–Trimethyl benzene (mesitylene) C9H12. The values for liquid, shown in Table 18.6, are thought to be accurate to 2–3 percent. Table 18.7 gives the thermal conductivity values at various pressures, which are accurate to 5–6 percent and may be fitted into the formula as follows: () λ⋅103=128+0.372 T−1.61⋅10−3 T2+1.44⋅10−6 T2.
Japanese evaluated nuclear data library version 5: JENDL-5
Published in Journal of Nuclear Science and Technology, 2023
Osamu Iwamoto, Nobuyuki Iwamoto, Satoshi Kunieda, Futoshi Minato, Shinsuke Nakayama, Yutaka Abe, Kohsuke Tsubakihara, Shin Okumura, Chikako Ishizuka, Tadashi Yoshida, Satoshi Chiba, Naohiko Otuka, Jean-Christophe Sublet, Hiroki Iwamoto, Kazuyoshi Yamamoto, Yasunobu Nagaya, Kenichi Tada, Chikara Konno, Norihiro Matsuda, Kenji Yokoyama, Hiroshi Taninaka, Akito Oizumi, Masahiro Fukushima, Shoichiro Okita, Go Chiba, Satoshi Sato, Masayuki Ohta, Saerom Kwon
In Figures 71–77, total cross sections for methane, ethanol, benzene, toluene, meta-xylene, mesitylene and triphenylmethane are shown respectively. Experimental data [273,282–290] and the evaluated cross sections for ENDF/B-VIII.0 [13] and JEFF-3.3 [27] are also shown if their comparable data are available. As for the comparison with experiments, the present results of methane, ethanol, benzene, toluene, mesitylene and triphenylmethane are in reasonable agreement with the corresponding experimental data. As for the comparison with the evaluated cross sections, the present result of methane at 20 K shows an improvement below thermal energies as compared with ENDF/B-VIII.0, which apparently underestimates the experiment (Figure 71). The result of benzene at 300 K is in consistent with ENDF/B-VIII.0 below 2 eV, which is the upper limit of the incident neutron energy for benzene in ENDF/B-VIII.0 (Figure 73). The results of toluene and mesitylene at 20 K show an improvement above several hundreds of meV as compared with JEFF-3.3, which exhibits an apparent dip around 600 meV (Figure 74 and 76).
Phase-selective gelators based on benzene 1,3,5-tricarboxamide for aromatic solvents recovery and dye removal
Published in Soft Materials, 2021
Zhongxuan Li, Hongmei Qu, Yuanyuan Zhai, Liqiang Liu
To our surprise, we found that 3a can gelate mesitylene and xylene without heating. In this work, via simple mechanical shaking, the 3a gelator was fully dispersed in the mesitylene and xylene phase, which further facilitated complete gel formation in an aromatic solvent and water mixture. As model examples, the phase-selective gelation of mesitylene, toluene, and xylene were carried by mixing an equiv. Further vigorous shaking was carried out to facilitate the dispersion of 3a powders in three solvents. At room temperature, two of the resulting feculent mixture were rested for 15 min and led to a gel-like chunk (Fig. 9a,b). The gel-like chunk was scooped out easily by a spoon (Fig. 9d). Furthermore, the gelator could be recycled via a simple distillation process and the mesitylene and xylene solvents can be recovered. Finally, the BCGC method was used to determine that 3a can be applied in the powder form without heating within 3.2% (w/v) in mesitylene and 4.2% (w/v) in xylene. Therefore, 3a has the potential application in the real-life recovery of mesitylene and xylene.
Alkyl transfer reactions on solid acids. The disproportionation of ethylbenzene and toluene on H-mordenite and HY zeolites
Published in Petroleum Science and Technology, 2018
For environmental reasons, solid acid catalysts (zeolites) are desired. The intention was also to extend the study of acid catalysts to include wider pore materials, if required, such as mesoporous silica (Zhao, An, and Zhou 2013), suitably activated for acid catalysis by aluminium introduction; in coal tar-pitch contains large polynuclear aromatic molecular complexes which might not be accommodated in the pores of known microporous zeolite catalysts. The data in this paper represent a base-line for aromatics conversion on two specific zeolites against which more complex reactions could be compared. The more complex reactions include, xylene disproportionation, mesitylene disproportionation, benzene alkylation using mesitylene and benzene alkylation with alkylnaphthalenes and polyalkylnaphthalenes. Alkylbenzene-alphanaphthalene reactions and back-transalkylation reactions would also be studied. The concept of molecular traffic control (Neugebauer, Bräuer, and Kärger 2000) describes the diffusion processes within pore networks, when small and large molecules diffuse preferentially in the small and large pores, respectively. The disproportionation of ethylbenzene was introduced by Karge et al. (1983) as a test reaction for characterizing the BrØnsted acidity of large pore zeolites; e.g. the mordenite and faujasites.