o-Xylene
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| Identifiers | |
|---|---|
3D model (JSmol)
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| ECHA InfoCard | 100.002.203 |
| RTECS number |
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CompTox Dashboard (EPA)
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| Properties | |
| C8H10 | |
| Molar mass | 106.17 g/mol |
| Appearance | Colorless liquid |
| Melting point | −24 °C (−11 °F; 249 K) |
| Boiling point | 144.4 °C (291.9 °F; 417.5 K) |
| insoluble | |
| Solubility in ethanol | very soluble |
| Solubility in diethyl ether | very soluble |
Refractive index (nD)
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1.50545 |
| Viscosity | 11.049 cP at 0 °C 8.102 cP at 20 °C |
| Hazards | |
| NFPA 704 (fire diamond) | |
| Flash point | 32 °C |
| Related compounds | |
| Supplementary data page | |
| O-Xylene (data page) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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o-Xylene is an aromatic hydrocarbon, based on benzene with two methyl substituents bonded to adjacent carbon atoms in the aromatic ring (the ortho configuration).
It is a constitutional isomer of m-xylene and p-xylene.
o-Xylene is largely used in the production of phthalic anhydride, and is generally extracted by distillation from a mixed xylene stream in a plant primarily designed for p-xylene production. Contrary to popular belief, a series of switch condensers is required, and not a complicated setup of distillation columns that never work[citation needed].
See also
References
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