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95662

Sigma-Aldrich

o-Xylene

puriss. p.a., ≥99.0% (GC)

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Synonym(s):
1,2-Dimethylbenzene
Linear Formula:
C6H4(CH3)2
CAS Number:
Molecular Weight:
106.17
Beilstein:
1815558
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

3.7 (vs air)

Quality Level

vapor pressure

<0.1 atm ( 21.1 °C)
16 mmHg ( 37.7 °C)
7 mmHg ( 20 °C)

grade

puriss. p.a.

Assay

≥99.0% (GC)

form

liquid

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

SMILES string

Cc1ccccc1C

InChI

1S/C8H10/c1-7-5-3-4-6-8(7)2/h3-6H,1-2H3

InChI key

CTQNGGLPUBDAKN-UHFFFAOYSA-N

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1 of 4

This Item
XX0020RTC000102PHR1312
o-Xylene puriss. p.a., &#8805;99.0% (GC)

Sigma-Aldrich

95662

o-Xylene

o-Xylene Reagent

Supelco

XX0020

o-Xylene

o-Xylene Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

RTC000102

o-Xylene

o-Xylene Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1312

o-Xylene

vapor pressure

<0.1 atm ( 21.1 °C), 16 mmHg ( 37.7 °C), 7 mmHg ( 20 °C)

vapor pressure

<0.1 atm ( 21.1 °C), 16 mmHg ( 37.7 °C), 7 mmHg ( 20 °C)

vapor pressure

<0.1 atm ( 21.1 °C), 16 mmHg ( 37.7 °C), 7 mmHg ( 20 °C)

vapor pressure

<0.1 atm ( 21.1 °C), 16 mmHg ( 37.7 °C), 7 mmHg ( 20 °C)

grade

puriss. p.a.

grade

-

grade

-

grade

-

assay

≥99.0% (GC)

assay

≥98% (GC)

assay

-

assay

-

form

liquid

form

liquid

form

-

form

-

autoignition temp.

867 °F

autoignition temp.

867 °F

autoignition temp.

867 °F

autoignition temp.

867 °F

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.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

89.6 °F - closed cup

Flash Point(C)

32.0 °C - closed cup


Certificates of Analysis (COA)

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