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95662 Sigma-Aldrich

o-Xylene

puriss. p.a., ≥99.0% (GC)

Synonym: 1,2-Dimethylbenzene

  • CAS Number 95-47-6

  • Linear Formula C6H4(CH3)2

  • Molecular Weight 106.17

  •  Beilstein/REAXYS Number 1815558

  •  EC Number 202-422-2

  •  MDL number MFCD00008519

  •  PubChem Substance ID 329770474

  •  NACRES NA.21

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Properties

Related Categories Amber Glass Bottles, Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Carthamus tinctorius (Safflower oil),
vapor density   3.7 (vs air)
vapor pressure   <0.1 atm ( 21.1 °C)
  16 mmHg ( 37.7 °C)
  7 mmHg ( 20 °C)
InChI Key   CTQNGGLPUBDAKN-UHFFFAOYSA-N
grade   puriss. p.a.
assay   ≥99.0% (GC)
autoignition temp.   867 °F
expl. lim.   7 %
impurities   ≤0.4% toluene (GC)
  ≤0.6% m- and p-xylene (GC)
evapn. residue   ≤0.002%
refractive index   n20/D 1.505 (lit.)
  n20/D 1.505
bp   143-145 °C (lit.)
mp   -26--23 °C (lit.)
solubility   water: partially soluble 0.1705 g/L at 25 °C
density   0.879 g/mL at 20 °C (lit.)
cation traces   Al: ≤0.5 mg/kg
  Ba: ≤0.1 mg/kg
  Bi: ≤0.1 mg/kg
  Ca: ≤0.5 mg/kg
  Cd: ≤0.05 mg/kg
  Co: ≤0.02 mg/kg
  Cr: ≤0.02 mg/kg
  Cu: ≤0.02 mg/kg
  Fe: ≤0.1 mg/kg
  K: ≤0.5 mg/kg
  Li: ≤0.1 mg/kg
  Mg: ≤0.1 mg/kg
  Mn: ≤0.02 mg/kg
  Mo: ≤0.1 mg/kg
  Na: ≤0.5 mg/kg
  Ni: ≤0.02 mg/kg
  Pb: ≤0.1 mg/kg
  Sr: ≤0.1 mg/kg
  Zn: ≤0.1 mg/kg

Description

General description

o-Xylene is an isomeric form of xylene. Experimental values of density (ρ) and speed of sound (u) of its binary mixtures with diethyl carbonate (DEC) have been evaluated over the temperature range of 298.15-323.15K and at 0.1MPa atmospheric pressure. Its oxidation in the presence of three-dimensionally ordered mesoporous Co3O4 (meso-Co3O4) supported gold (xAu/meso-Co3O4, x = 3.7-9.0wt%) nanocatalysts has been reported.

Application

o-Xylene may be used in the synthesis of phthalic anhydride and phthalodinitrile.

Packaging

1, 2.5 L in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
RIDADR 
UN1307 - class 3 - PG 3 - Xylenes
WGK Germany 
2
RTECS 
ZE2450000
Flash Point(F) 
87.8 °F
Flash Point(C) 
31 °C
Protocols & Articles

Articles

Pressure-Temperature Calculator for Solvents

*Calculations provide estimated results based on Antoine's Coefficients and their associated temperature range values. Antoine's Coefficients were obtained from the National Institute of Standards an...

Peer-Reviewed Papers
15

References

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