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Supelco

p-Xylene

analytical standard

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Synonym(s):
1,4-Dimethylbenzene
Linear Formula:
C6H4(CH3)2
CAS Number:
106-42-3
Molecular Weight:
106.17
Beilstein:
1901563
EC Number:
203-396-5
MDL number:
MFCD00008556
UNSPSC Code:
41116107
PubChem Substance ID:
329770478
NACRES:
NA.24

grade

analytical standard

Quality Level

100

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.

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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

WGK

WGK 2

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
Toxics A to Z: A Guide to Everyday Pollution Hazards (1991)
Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens (2017)
Toxics A to Z: A Guide to Everyday Pollution Hazards (1991)
Static headspace, solid-phase microextraction and headspace solid-phase microextraction for BTEX determination in aqueous samples by gas chromatography
Menendez FCJ, et al.
Analytica Chimica Acta, 415(1-2), 9-20 (2000)
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