Search results
Results From The WOW.Com Content Network
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.
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 ...
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.
Many different solvents are suitable, including sulfolane (C 4 H 8 O 2 S), furfural (C 5 H 4 O 2), tetraethylene glycol (C 8 H 18 O 5), dimethylsulfoxide (C 2 H 6 OS), and N-methyl-2-pyrrolidone (C 5 H 9 NO). Below is a schematic flow diagram of one method, involving extractive distillation, for extraction of the BTX aromatics from a catalytic ...
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].
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 –25.4 kJ/mol Standard molar entropy, S o liquid: 253.80 J/(mol K) Enthalpy of combustion, Δ c H o –4549 kJ/mol Heat capacity, c p: 184.5 J/(mol K) at 25 °C Gas properties Std enthalpy change of formation, Δ f H o gas: 17 ...
For centuries, people have claimed that green tea has many health benefits. These may include reducing the risk of cardiovascular disease, maintaining skin health, promoting weight loss, and even ...
of vaporization, Δ vap H o: 35.7 kJ/mol at 138 °C Std entropy change of vaporization, Δ vap S o? J/(mol·K) Solid properties Std enthalpy change of formation, Δ f H o solid? kJ/mol Standard molar entropy, 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 ...