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1 Material Safety Data Sheet. 2 Structure and properties. 3 Thermodynamic properties. 4 Vapor pressure of liquid. 5 Distillation data. ... log 10 of o-Xylene vapor ...
o-Xylene (ortho-xylene) is an aromatic hydrocarbon with the formula C 6 H 4 (CH 3) 2, with two methyl substituents bonded to adjacent carbon atoms of a benzene ring (the ortho configuration). It is a constitutional isomer of m-xylene and p-xylene, the mixture being called xylene or xylenes. o-Xylene is a colourless slightly oily flammable ...
A more modern synthesis is similar: the hydrolysis of the related tetrabromo-o-xylene using potassium oxalate, followed by purification by steam distillation. [2] The reactivity of OPA is complicated by the fact that in water it forms both a mono- and dihydrate, C 6 H 4 (CHO)(CH(OH) 2) and C 6 H 4 (CH(OH)) 2 O, respectively. Its reactions with ...
[3] [7] Commercial or laboratory-grade xylene produced usually contains about 40–65% of m-xylene and up to 20% each of o-xylene, p-xylene and ethylbenzene. [ 8 ] [ 9 ] [ 10 ] The ratio of isomers can be shifted to favor the highly valued p -xylene via the patented UOP- Isomar process [ 11 ] or by transalkylation of xylene with itself or ...
Triton X-100 is soluble at 25 °C in water, toluene, xylene, trichloroethylene, ethylene glycol, ethyl ether, ethyl alcohol, isopropyl alcohol, and ethylene dichloride. Triton X-100 is insoluble in kerosene, mineral spirits, and naphtha, unless a coupling agent like oleic acid is used.
2,3-xylidine, also called o-xylidine, 2,3-dimethylaniline, 2,3-xylylamine, or 2,3-dimethylphenylamine, is a liquid with melting point 2.5 °C and boiling point 222 °C, and flash point at 96 °C. Its CAS number is and its SMILES structure is Nc1cccc(C)c1C. It is used in production of mefenamic acid, dyes, and pesticides.
Phthalonitrile is produced industrially in a single-stage continuous process, by the ammoxidation of o-xylene at 480 °C. The reaction is catalyzed by vanadium oxide-antimony-oxide in a fluidized bed reactor. [2] Phthalonitrile was first described in 1896 by Johannes Pinnow.
Cycloadditions of these o-xylylenes provides a pathway to acenes. [10] The diene unit formed by the two exocyclic alkene units of the ortho isomer can serve as a ligand in coordination complexes. For example, reaction of α,α'-dibromo-o-xylene with iron carbonyls affords low yields of the xylylene complex Fe(CO) 3 [η 4-C 6 H 4 (CH 2) 2].