o-Xylene

o-Xylene
o-Xylene
Identifiers
CAS number 95-47-6 YesY
ChemSpider 6967 YesY
UNII Z2474E14QP YesY
DrugBank DB03029
KEGG C07212 YesY
ChEBI CHEBI:28063 YesY
RTECS number ZE2450000
Jmol-3D images Image 1
Properties
Molecular formula C8H10
Molar mass 106.16 g/mol
Appearance Colorless liquid
Melting point

-24 °C, 249 K, -11 °F

Boiling point

144.4 °C, 418 K, 292 °F

Solubility in water insoluble
Solubility in ethanol very soluble
Solubility in diethyl ether very soluble
Refractive index (nD) 1.50545
Viscosity 11.049 cP at 0 °C
8.102 cP at 20 °C
Hazards
MSDS External MSDS
EU classification Harmful (Xn) Flammable (F)
R-phrases R11 R20 R21 R38
S-phrases S25
NFPA 704
NFPA 704.svg
3
2
0
Flash point 32 °C
Related compounds
Related aromatic hydrocarbons m-xylene
p-xylene
toluene
Supplementary data page
Structure and
properties
n, εr, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

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. Its main production is in Buenos Aires.

See also

References


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