Three additional major aromatics are shown in Table 7:1,2,4-trimethylbenzene, 1-methyl 3-ethylbenzene, and
m-xylene.
However,
m-xylene and o-xylene did not cause OHC loss, according to experiments with rats conducted by Gagnaire and Langlais [28].
Inui, The effect of Y-zeolite acidity on
m-xylene transformation reactions, J.
Xylene exists as a clear liquid and can be found in three different isomeric forms: orthoxylene (o-xylene), metaxylene (
m-xylene), and paraxylene (p-xylene).
Ceresana expects global demand for xylenes to increase considerably in the future: Aggregated consumption of p-, o- and
m-xylene will rise by about 4.5% p.a.
Dissolves
m-xylene of 100% concentration at 139oC in 5 minutes and in cyclohexane of 100% concentration at 156oC in 5 minutes whereas.
Less voluminous reaction products will diffuse faster to the outside of the pore, so that pxylene diffuses 1000 times faster than o- and
m-xylene, and thus pxylene in the product might surpass the thermodynamic equilibrium values significantly [51].
Theoretical values of ultrasonic velocities in the mixtures: anisaldehyde + o-xylene, +
m-xylene and + p-xylene at different mole fractions of anisaldehyde for different temperatures were calculated using the following theories and relations:
1712) evaluated mixtures of benzene, toluene, ethylbenzene, and
m-xylene (BTEX) using three joint models of toxicokinetics and metabolism [i.e., physiologically based pharmacokinetic (PBPK) modeling, systems biology markup language modeling of metabolic networks, and detailed (non-Michaelian) description of enzymatic reactions] and calibrated the models using Markov chain Monte Carlo simulations and single-substance exposure data.
The reporting limit was 0.025 ppm for benzene, toluene ethylbenzene,
m-xylene and 0.050 ppm for o- and p-xylene and naphthalene.