Copolymer Pluronic P123 was used in this approach as a soft template, while a hard template requested was mesoporous silica, various organic molecules such as diamine benzene, 1,3,5-trimethylbenzene
were sources of carbon.
Then, 0.023 g of ammonium fluoride and 3 g of 1,3,5-trimethylbenzene
The two aromatic candidates, 1,3,5-triethylbenzene and 1,3,5-trimethylbenzene
have nearly identical solubility parameters and hence have identical compatibility performances.
The odor evaluation and the simultaneous identification via GC/MS-O allowed to identify 2-propanone, m,p-xylene, o-xylene, delta-3-carene, 1,2,3-trimethylbenzene, 1,3,5-trimethylbenzene
, and ethyltoluene as the odor-active VOCs responsible for the overall perceived odor.
Their experiments showed toluene, m-xylene, p-xylene, and 1,3,5-trimethylbenzene
ignite only at temperatures above 900 K and 16 bar, while o-xylene, ethylbenzene, 1,2,3-trimethylbenzene, 1,2,4-trimethylbenzene, n-propylbenzene, 2-ethyltoluene, and n-butylbenzene ignite at much lower temperatures and pressures.
, which has shorter half-life time (12 h) than styrene, is still present in the vicinity of petrochemical and chemical industrial sites; it is an important solvent used in coatings, cleaners, pesticides, and inks.
Pollutant category Pollutants Inert (nonaromatic, Cyclopentane, methylcyclopentane, nonalkane) methylcyclohexane, sulfur, EC, CO, N[O.sub.2] Polar (nonaldehyde) Acetic acid, 2-butanone, organic carbon Aromatic Benzene, toluene, ethylbenzene, m-xylene and p-xylene, o-xylene, n-propylbenzene, p-ethyltoluene, m-ethyltoluene, 1,3,5-trimethylbenzene
, 1,2,4-trimethylbenzene and sec-butylbenzene Aldehyde Benzaldehyde, heptanal, hexanal, octanal Alkane 2,2,4-Trimethylpentane, 2,2-dimethylbutane, 2,3,4-trimethylpentane, 2,3-dimethylbutane.
Values of density ([rho]), molar volume ([V.sub.m]), theoretical and experimental speed of sound ([u.sub.cal] and [u.sub.exp]), percent deviation in speed of sound (%[DELTA]u) and isentropic compressibility ([[beta].sub.s]) for six binary mixtures; tetrahydrofuran (THF) + 1,2,4-trimethyl benzene (TMB), tetrahydrofuran (THF) + 1,2,3-trimethyl benzene (TMB), tetrachloromethane (TCM) + 1,2,4-trimethyl benzene (TMB), tetrachloromethane (TCM) + 1,3,5-trimethylbenzene
, dimethyl sulfoxide (DMSO) + 1,2,4-trimethyl benzene + dimethyl sulfoxide (DMSO) + 1,3,5-trimethyl benzene at 298.5 K are presented in tables 2-7.