Merck
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95680

Supelco

p-Xylene

analytical standard

Synonym(s):
1,4-Dimethylbenzene
Linear Formula:
C6H4(CH3)2
CAS Number:
Molecular Weight:
106.17
Beilstein:
1901563
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

Quality Level

grade

analytical standard

vapor density

3.7 (vs air)

vapor pressure

9 mmHg ( 20 °C)

assay

≥99.5% (GC)

autoignition temp.

984 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

7 %

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

refractive index

n20/D 1.495 (lit.)
n20/D 1.495

bp

138 °C (lit.)

mp

12-13 °C (lit.)

density

0.861 g/mL at 20 °C (lit.)

application(s)

environmental

format

neat

SMILES string

Cc1ccc(C)cc1

InChI

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

InChI key

URLKBWYHVLBVBO-UHFFFAOYSA-N

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General description

p-Xylene is an aromatic liquid, which is an isomeric form of xylene. It can be produced via Diels-Alder reaction between 2,5-dimethylfuran and ethylene catalyzed by zeolite.
p-Xylene is an aromatic liquid , which is an isomeric form of xylene. It can be produced via Diels-Alder reaction between 2,5-dimethylfuran and ethylene catalyzed by zeolite.
p-Xylene is an environmental pollutant belonging to the class of volatile organic compounds. It is emitted from a variety of sources including adhesives, degreasing agents, combustion products of wood and fuels, industrial paints, aerosols, etc.

Application

p-Xylene may be used as an analytical reference standard for the quantification of the analyte in occupational environmental samples and aqueous samples using gas chromatography technique with different modes of detection.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Packaging

5, 50 mL in glass bottle

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - 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)

80.6 °F - closed cup

Flash Point(C)

27 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens (2017)
Toxics A to Z: A Guide to Everyday Pollution Hazards (1991)
Production of p?Xylene from Biomass by Catalytic Fast Pyrolysis Using ZSM?5 Catalysts with Reduced Pore Openings.
Cheng Y T, et al.
Angewandte Chemie (International Edition in English), 124(44), 11259-11262 (2012)
Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens (2017)
Toxics A to Z: A Guide to Everyday Pollution Hazards (1991)

Protocols

ASTM D6526: GC Analysis of Impurities in Toluene on SLB®-IL100, 60 m Column

ASTM D6526: GC Analysis of Impurities in Toluene on SLB®-IL100, 60 m Column

GC Analysis of Xylene Isomers on SLB®-IL60

GC Analysis of Xylene Isomers on SLB®-IL60 - The cresol (methylphenol) isomers are also precursors to many chemicals. This chromatogram of a mix of aromatic and methylphenol compounds was generated using an SLB-IL60 ionic liquid column. Its interaction mechanisms allow the separation of all three xylene isomers, and all three cresol isomers.

US EPA Method 8015 (modified): GC Analysis of Gasoline Range Organics (GRO) on Equity®-1 after Purge & Trap using "M" Trap

Technical article page on -US EPA Method 8015 (modified): GC Analysis of Gasoline Range Organics (GRO) on Equity®-1 after Purge & Trap using "M" Trap

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