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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.
Xylene is used in the laboratory to make baths with dry ice to cool reaction vessels, [17] and as a solvent to remove synthetic immersion oil from the microscope objective in light microscopy. [18] In histology, xylene is the most widely used clearing agent. [19] Xylene is used to remove paraffin from dried microscope slides prior to staining.
S o solid? J/(mol K) Heat capacity, c p? J/(mol K) Liquid properties Std enthalpy change of formation, Δ f H o liquid: −24.4 kJ/mol Standard molar entropy, S o liquid: 247 J/(mol K) Enthalpy of combustion, Δ c H o: −4552 kJ/mol Heat capacity, c p: 187.0 J/(mol K) at 25°C Gas properties Std enthalpy change of formation, Δ f H o gas: 19.0 ...
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 ...
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].
A teenage hunter allegedly shot dead his parents and younger brother before taking his own life in a horrifying murder-suicide. Clifford Hunt Jr., 19, is believed to have shot parents Michelle, 48 ...
Christina Haack (formerly Hall) is sharing an update on her ongoing divorce with ex Josh Hall. The HGTV star, 41, spoke briefly about her divorce on episode 2 of The Flip Off (airing Feb. 8 at. 8 ...
The practice of drinking coffee for a caffeine boost dates back to the 15th Century, but human coffee consumption has certainly evolved since that time. See: The pumpkin spice latte or a celebrity ...