- n. organic chemistry An aromatic hydrocarbon based on benzene with two methyl substituents bonded to adjacent carbon atoms in the aromatic ring (the ortho configuration).
GNU Webster's 1913
- n. (Chem.) That variety of xylene (C6H4(CH3)2) in which the two methyl groups are in the
orthoposition; a colorless, liquid, combustible hydrocarbon resembling benzene.
- ortho- + xylene (Wiktionary)
“If you photooxidize orthoxylene, with it's two adjacent methyl groups, when the ring opens, a certain percentage of time you get biacetyl.”
“Annual aromatics growth rates are pro - jected at 4 to 5 percent in Europe and 5 to 7 percent Left, top: With 11 aromatics plants, ExxonMobil Chemical is the world's largest producer of paraxylene, orthoxylene and benzene, fundamental materials for a wide range of consumer products.”
“EBIT margin dollars were negatively impacted by approximately $5 million as higher cost yearend inventories, primarily phthalic anhydride, orthoxylene and carbon black feedstock, were processed.”
“At present, CheMatch offers members -- i.e., registered buyers and sellers -- the ability to trade benzene, mixed xylenes, para xylene, orthoxylene, toluene, methanol, mtbe, and styrene monomer.”
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