Therefore, when acrylic water-based paint is used as the finish for particleboard, the ethanediol, 1,2-propylene glycol, aromatic hydrocarbons, methylbenzene
, xylene, and cyclohexanone should be controlled.
 Chemicals used in cosmetics as preservatives or solubilizes as fragrances, colorants, and UV-protection are mostly non-persistent, but traces persist such as toxic metal lead (Pb), butyl phthalic acid (BPA), musk xylene, siloxane D5, triclosan, UV-filter isotiazoliner 4-methylbenzylidene camphor, and methylbenzene
, which were reported to be the main causes of some cancers including the melanoma.
The other reagents, Sn[(Oct).sub.2], tetrabutyl titanate (TBT), dimethyl sulfoxide-[d.sub.6] (DMSO-[d.sub.6]), monobutyltin oxide (MBTO), n-octane, methylbenzene
, and diethylene glycol, purchasing from Aladdin Reagent Co., Ltd., were used without further purification.
The standard deviation (SD) of all compounds, except methylbenzene
(0.66%), did not exceed 0.5%.
The predominant volatile compound in studied loins was methylbenzene
, followed by heptane, hexane, hexanal, eucalyptol and 3-hydroxy-2-butanone (Table 3).
Compound (2) 1,2-bis(benzothiazolyl)-4 methylbenzene
: Yield: 75%; Anal.
Volatile organic compounds (VOCs) such as diethyl ether and methylbenzene
, which are commonly released from chemical reagents, or even building paints, have been considered severe risks to human health [1,2].
The gas responses to formaldehyde (HCHO), benzene ([C.sub.6][H.sub.6]), methylbenzene
([C.sub.6][H.sub.5]C[H.sub.3]), trichloromethane (CH[Cl.sub.3]), ethanol ([C.sub.2][H.sub.5]OH), and ammonia (N[H.sub.3]) were measured.
A dried resin film ([W.sub.0] of weight) was placed in a Soxhlet extractor and extracted with methylbenzene
under reflux for 7 days.
as an example, when the temperature was higher, the methylbenzene
should lose a hydrogen atom, then become the free radical; the free radical reacted with other lower weight molecules and formed naphthalene.