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MilliporeSigma

8.08697

o-Xylene

for synthesis

Synonym(s):

1,2-Dimethylbenzene

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About This Item

Linear Formula:
C6H4(CH3)2
CAS Number:
95-47-6
Molecular Weight:
106.17
UNSPSC Code:
12352005
NACRES:
NA.22
EC Index Number:
202-422-2
MDL number:
MFCD00008519
Beilstein/REAXYS Number:
1815558
Assay:
≥98% (GC)
Grade:
synthesis grade
Bp:
143-145 °C (lit.)
Vapor pressure:
<0.1 atm ( 21.1 °C), 16 mmHg ( 37.7 °C), 7 mmHg ( 20 °C)

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InChI key

CTQNGGLPUBDAKN-UHFFFAOYSA-N

SMILES string

Cc1ccccc1C

InChI

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

grade

synthesis grade

vapor density

3.7 (vs air)

vapor pressure

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

assay

≥98% (GC)

form

liquid

autoignition temp.

867 °F

expl. lim.

7 %

dilution

(for synthesis)

refractive index

n20/D 1.505 (lit.)

bp

143-145 °C (lit.)

mp

-26--23 °C (lit.)

transition temp

flash point 30 °C

density

0.879 g/mL at 20 °C (lit.)

storage temp.

2-30°C

Quality Level

200

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This Item
X104095660XX0020
o-Xylene for synthesis

Sigma-Aldrich

8.08697

o-Xylene

o-Xylene reagent grade, &#8805;98.0%

Sigma-Aldrich

X1040

o-Xylene

o-Xylene analytical standard

Supelco

95660

o-Xylene

o-Xylene Reagent

Supelco

XX0020

o-Xylene

assay

≥98% (GC)

assay

≥98.0%

assay

≥99.0% (GC)

assay

≥98% (GC)

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

200

form

liquid

form

liquid

form

-

form

liquid

refractive index

n20/D 1.505 (lit.)

refractive index

n20/D 1.505 (lit.)

refractive index

n20/D 1.505 (lit.)

refractive index

n20/D 1.505 (lit.)

density

0.879 g/mL at 20 °C (lit.)

density

0.879 g/mL at 20 °C (lit.)

density

0.879 g/mL at 20 °C (lit.)

density

0.879 g/mL at 20 °C (lit.), 0.88 g/cm3 at 20 °C

autoignition temp.

867 °F

autoignition temp.

867 °F

autoignition temp.

867 °F

autoignition temp.

867 °F

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.878 - 0.881
Identity (IR): passes test

Application

O-Xylene is used:
  • As an additive of dope solutions in the preparation of PES (polyethersulfone) hollow fiber membranes.[1]
  • To produce phthalic anhydride.[2]

General description

O-Xyleneis an aromatic hydrocarbon composed of two methyl substituents attached to adjacent carbon atoms. It has extremely low solubility in water. It is used to produce plasticizers, dyes, and pigments. Petroleum cracking produces O-Xylenes, which are used to generate phthalic anhydride, a precursor to many products, drugs, and chemicals.[3][1][4]

signalword

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

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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Preparation and properties of polyethersulfone hollow fiber membranes with o-xylene as an additive used in membrane contactors for CO2 absorption
Ghasem N, et al.
Separation and Purification Technology, 92, 1-10 (2012)
Pyrolysis of waste tyres with zeolite USY and ZSM-5 catalysts
Boxiong S, et al.
Applied Catalysis. B, Environmental, 73(1-2), 150-157 (2007)
Fluorescence and photophysical properties of xylene isomers in water: with experimental and theoretical approaches
Muhammad Farooq Saleem K, et al.
Royal Society open science, 5(2), 171719-171719 (2018)
Mariana A Moreira et al.
Langmuir : the ACS journal of surfaces and colloids, 28(13), 5715-5723 (2012-03-13)
Powder, agglomerates, and tablets of the microporous zirconium(IV) terephthalate metal-organic framework UiO-66 were evaluated for the selective adsorption and separation of xylene isomers in the liquid phase using n-heptane as the eluent. Pulse experiments, performed at 313 K in the

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